Classification of families

J.P. Euzéby: List of Prokaryotic names with Standing in Nomenclature

Classification of families

Acanthopleuribacteraceae - (List of genera included in the family)
Suborder:
Order: Acanthopleuribacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Holophagae - (List of orders and suborders included in the class)
Division or phylum: "Acidobacteria" - (see Phylum "Acidobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Acetobacteraceae - (List of genera included in the family)
Suborder:
Order: Rhodospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Acholeplasmataceae - (List of genera included in the family)
Suborder:
Order: Acholeplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Mollicutes - (List of orders and suborders included in the class)
Division or phylum: "Tenericutes" (see Phylum "Tenericutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Achromatiaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Thiotrichaceae.

"Acidaminococcaceae"
See Veillonellaceae

Acidilobaceae - (List of genera included in the family)
Suborder:
Order: Acidilobales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei or Crenarchaeota - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Acidimicrobiaceae - (List of genera included in the family)
Suborder: "Acidimicrobineae" - (List of genera included in the suborder - List of families included in the suborder)
Order: Acidimicrobiales - (List of genera included in the order - List of families included in the order)
Subclass: Acidimicrobidae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Acidithiobacillaceae - (List of genera included in the family)
Suborder:
Order: Acidithiobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Acidobacteriaceae" - (List of genera included in the family)
Suborder:
Order: Acidobacteriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Acidobacteria - (List of orders and suborders included in the class)
Division or phylum: "Acidobacteria" - (see Phylum "Acidobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Acidothermaceae - (List of genera included in the family)
Suborder: Frankineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Actinomycetaceae - (List of genera included in the family)
Suborder: Actinomycineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Actinoplanaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Micromonosporaceae.

Actinopolysporaceae - (List of genera included in the family)
Suborder: Actinopolysporineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Actinospicaceae - (List of genera included in the family)
Suborder: Catenulisporineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Actinosynnemataceae - (List of genera included in the family)
Suborder: Pseudonocardineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Aerococcaceae - (List of genera included in the family)
Suborder:
Order: Lactobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Aeromonadaceae - (List of genera included in the family)
Suborder:
Order: Aeromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Alcaligenaceae - (List of genera included in the family)
Suborder:
Order: Burkholderiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Alcanivoracaceae - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Alicyclobacillaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Alteromonadaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Anaerolineaceae - (List of genera included in the family)
Suborder:
Order: Anaerolineales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Anaerolineae - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Anaeroplasmataceae - (List of genera included in the family)
Suborder:
Order: Anaeroplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Mollicutes - (List of orders and suborders included in the class)
Division or phylum: "Tenericutes" (see Phylum "Tenericutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Anaplasmataceae - (List of genera included in the family)
Suborder:
Order: Rickettsiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Aquificaceae - (List of genera included in the family)
Suborder:
Order: Aquificales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Aquificae - (List of orders and suborders included in the class)
Division or phylum: "Aquificae" (see Phylum "Aquificae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Archaeoglobaceae - (List of genera included in the family)
Suborder:
Order: Archaeoglobales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Archaeoglobi - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Archangiaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Cystobacteraceae.

"Aurantimonadaceae" - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Azotobacteraceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Pseudomonadaceae.

Bacillaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Bacteriovoracaceae - (List of genera included in the family)
Suborder:
Order: Bdellovibrionales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria) - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Bacteroidaceae - (List of genera included in the family)
Suborder:
Order: "Bacteroidales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Bacteroidia" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Bartonellaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Bdellovibrionaceae - (List of genera included in the family)
Suborder:
Order: Bdellovibrionales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Beggiatoaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Thiotrichaceae.

Beijerinckiaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Beutenbergiaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders includes in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" - (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Bifidobacteriaceae - (List of genera included in the family)
Suborder:
Order: Bifidobacteriales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Blattabacteriaceae" - (List of genera included in the family)
Suborder:
Order: "Flavobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Flavobacteria - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Bogoriellaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Brachyspiraceae" - (List of genera included in the family)
Suborder:
Order: Spirochaetales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Spirochaetes - (List of orders and suborders included in the class)
Division or phylum: "Spirochaetes" or "Spirochaetae" - (see Phylum "Spirochaetes" or "Spirochaetae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Bradyrhizobiaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Branhamaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Moraxellaceae.

Brevibacteriaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Brevinemataceae" - (List of genera included in the family)
Suborder:
Order: Spirochaetales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Spirochaetes - (List of orders and suborders included in the class)
Division or phylum: "Spirochaetes" or "Spirochaetae" - (see Phylum "Spirochaetes" or "Spirochaetae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Brucellaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Burkholderiaceae - (List of genera included in the family)
Suborder:
Order: Burkholderiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Caldilineaceae - (List of genera included in the family)
Suborder:
Order: Caldilineales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Caldilineae - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Caldisericaceae - (List of genera included in the family)
Suborder:
Order: Caldisericales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Caldisericia - (List of orders and suborders included in the class)
Division or phylum: "Caldiserica" (see Phylum "Caldiserica" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Caldisphaeraceae - (List of genera included in the family)
Suborder:
Order: Acidilobales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei or Crenarchaeota - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Campylobacteraceae - (List of genera included in the family)
Suborder:
Order: Campylobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Epsilonproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Caldicoprobacteraceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Clostridia" - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Cardiobacteriaceae - (List of genera included in the family)
Suborder:
Order: Cardiobacteriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Carnobacteriaceae - (List of genera included in the family)
Suborder:
Order: Lactobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Caryophanaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Catenulisporaceae - (List of genera included in the family)
Suborder: Catenulisporineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Caulobacteraceae - (List of genera included in the family)
Suborder:
Order: Caulobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Cellulomonadaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Cenarchaeaceae" - (List of genera included in the family)
Suborder:
Order: Cenarchaeales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei (Crenarchaeota) - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

"Chitinophagaceae" - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Chlamydiaceae - (List of genera included in the family)
Suborder:
Order: Chlamydiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Chlamydiae - (List of orders and suborders included in the class)
Division or phylum: "Chlamydiae" (see Phylum "Chlamydiae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Chlorobiaceae - (List of genera included in the family)
Suborder:
Order: Chlorobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Chlorobea ("Chlorobia") - (List of orders and suborders included in the class)
Division or phylum: "Chlorobi" (see Phylum "Chlorobi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Chloroflexaceae" - (List of genera included in the family)
Suborder:
Order: "Chloroflexales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Chloroflexi" - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" - (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Chromatiaceae - (List of genera included in the family)
Suborder:
Order: Chromatiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Chrysiogenaceae - (List of genera included in the family)
Suborder:
Order: Chrysiogenales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Chrysiogenetes - (List of orders and suborders included in the class)
Division or phylum: "Chrysiogenetes" (see Phylum "Chrysiogenetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Clostridiaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Cohaesibacteraceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Colwelliaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Comamonadaceae - (List of genera included in the family)
Suborder:
Order: Burkholderiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Conexibacteraceae - (List of genera included in the family)
Order: Solirubrobacterales - (List of genera included in the order - List of families included in the order)
Subclass: Rubrobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Coriobacteriaceae - (List of genera included in the family)
Suborder: "Coriobacterineae"
Order: Coriobacteriales - (List of genera included in the order - List of families included in the order)
Subclass: Coriobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Corynebacteriaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Coxiellaceae - (List of genera included in the family)
Suborder:
Order: Legionellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Crenotrichaceae - (List of genera included in the family)
Suborder:
Order: Methylococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Cryomorphaceae - (List of genera included in the family)
Suborder:
Order: "Flavobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Flavobacteria - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Cryptosporangiaceae - (List of genera included in the family)
Suborder: Frankineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Cyclobacteriaceae" - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Cystobacteraceae - (List of genera included in the family)
Suborder: Cystobacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Cytophagaceae - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Deferribacteraceae - (List of genera included in the family)
Suborder:
Order: Deferribacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deferribacteres - (List of orders and suborders included in the class)
Division or phylum: "Deferribacteres" (see Phylum "Deferribacteres" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Deinococcaceae - (List of genera included in the family)
Suborder:
Order: Deinococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deinococci - (List of orders and suborders included in the class)
Division or phylum: "Deinococcus-Thermus" (see Phylum "Deinococcus-Thermus" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Dermabacteraceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Dermacoccaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Dermatophilaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfarculaceae - (List of genera included in the family)
Suborder:
Order: Desulfarculales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfobacteraceae - (List of genera included in the family)
Suborder:
Order: Desulfobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfobulbaceae - (List of genera included in the family)
Suborder:
Order: Desulfobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfohalobiaceae - (List of genera included in the family)
Suborder:
Order: Desulfovibrionales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfomicrobiaceae - (List of genera included in the family)
Suborder:
Order: Desulfovibrionales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfonatronaceae - (List of genera included in the family)
Suborder:
Order: Desulfovibrionales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfovibrionaceae - (List of genera included in the family)
Suborder:
Order: Desulfovibrionales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfurellaceae - (List of genera included in the family)
Suborder:
Order: Desulfurellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfurobacteriaceae - (List of genera included in the family)
Suborder:
Order: Aquificales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Aquificae - (List of orders and suborders included in the class)
Division or phylum: "Aquificae" (see Phylum "Aquificae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Desulfurococcaceae - (List of genera included in the family)
Suborder:
Order: Desulfurococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei (Crenarchaeota) - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Desulfuromonadaceae - (List of genera included in the family)
Suborder:
Order: Desulfuromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Dictyoglomaceae" - (List of genera included in the family)
Suborder:
Order: "Dictyoglomales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Dictyoglomia" - (List of orders and suborders included in the class)
Division or phylum: "Dictyoglomi" - (see Phylum "Dictyoglomi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Dietziaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Ectothiorhodospiraceae - (List of genera included in the family)
Suborder:
Order: Chromatiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Ehrlichiaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Anaplasmataceae.

Elusimicrobiaceae - (List of genera included in the family)
Suborder:
Order: Elusimicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Elusimicrobia - (List of orders and suborders included in the class)
Division or phylum: "Elusimicrobia" (see Phylum "Elusimicrobia" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Enterobacteriaceae - (List of genera included in the family)
Suborder:
Order: "Enterobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Enterococcaceae - (List of genera included in the family)
Suborder:
Order: Lactobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Entomoplasmataceae - (List of genera included in the family)
Suborder:
Order: Entomoplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Mollicutes - (List of orders and suborders included in the class)
Division or phylum: "Tenericutes" (see Phylum "Tenericutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Erysipelotrichaceae - (List of genera included in the family)
Suborder:
Order: Erysipelotrichales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Erysipelotrichia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Erythrobacteraceae - (List of genera included in the family)
Suborder:
Order: Sphingomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Eubacteriaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Ferrimonadaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Ferroplasmaceae - (List of genera included in the family)
Suborder:
Order: Thermoplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoplasmata - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

"Fibrobacteraceae" - (List of genera included in the family)
Suborder:
Order: "Fibrobacterales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Fibrobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Fibrobacteres" - (see Phylum "Fibrobacteres" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Flammeovirgaceae" - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Flavobacteriaceae - (List of genera included in the family)
Suborder:
Order: "Flavobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Flavobacteria - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Flexibacteraceae"
See Cytophagaceae

Francisellaceae - (List of genera included in the family)
Suborder:
Order: Thiotrichales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Frankiaceae - (List of genera included in the family)
Suborder: Frankineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Fusobacteriaceae" - (List of genera included in the family)
Suborder:
Order: "Fusobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Fusobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Fusobacteria" - (see Phylum "Fusobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Gallionellaceae - (List of genera included in the family)
Suborder:
Order: Nitrosomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Gemmatimonadaceae - (List of genera included in the family)
Suborder:
Order: Gemmatimonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gemmatimonadetes - (List of orders and suborders included in the class)
Division or phylum: "Gemmatimonadetes" (see Phylum "Gemmatimonadetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Geobacteraceae - (List of genera included in the family)
Suborder:
Order: Desulfuromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Geodermatophilaceae - (List of genera included in the family)
Suborder: Frankineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Glycomycetaceae - (List of genera included in the family)
Suborder: Glycomycineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Gordoniaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Gracilibacteraceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Granulosicoccaceae - (List of genera included in the family)
Suborder:
Order: Chromatiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Hahellaceae - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Halanaerobiaceae - (List of genera included in the family)
Suborder:
Order: Halanaerobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Haliangiaceae" - (List of genera included in the family)
Suborder: Nannocystineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria or Deltabacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Halobacteriaceae - (List of genera included in the family)
Suborder:
Order: Halobacteriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Halobacteria (Halomebacteria) - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Halobacteroidaceae - (List of genera included in the family)
Suborder:
Order: Halanaerobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Halomonadaceae - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Haloplasmataceae - (List of genera included in the family)
Suborder:
Order: Haloplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Mollicutes - (List of orders and suborders included in the class)
Division or phylum: "Tenericutes" (see Phylum "Tenericutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Halothiobacillaceae - (List of genera included in the family)
Suborder:
Order: Chromatiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Helicobacteraceae - (List of genera included in the family)
Suborder:
Order: Campylobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Epsilonproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Heliobacteriaceae" - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Herpetosiphonaceae" - (List of genera included in the family)
Suborder:
Order: "Herpetosiphonales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Chloroflexi" - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" - (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Holophagaceae - (List of genera included in the family)
Suborder:
Order: Holophagales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Holophagae - (List of orders and suborders included in the class)
Division or phylum: "Acidobacteria" - (see Phylum "Acidobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Holosporaceae - (List of genera included in the family)
Suborder:
Order: Rickettsiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Hydrogenimonaceae" - (List of genera included in the family)
Suborder:
Order: Campylobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Epsilonproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Hydrogenophilaceae - (List of genera included in the family)
Suborder:
Order: Hydrogenophilales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Hydrogenothermaceae - (List of genera included in the family)
Suborder:
Order: Aquificales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Aquificae - (List of orders and suborders included in the class)
Division or phylum: "Aquificae" (see Phylum "Aquificae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Hyphomicrobiaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Hyphomonadaceae - (List of genera included in the family)
Suborder:
Order: Caulobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Iamiaceae
Suborder: "Acidimicrobineae" - (List of genera included in the suborder - List of families included in the suborder)
Order: Acidimicrobiales - (List of genera included in the order - List of families included in the order)
Subclass: Acidimicrobidae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Idiomarinaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Intrasporangiaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Jonesiaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Kiloniellaceae - (List of genera included in the family)
Suborder:
Order: Kiloniellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Kineosporiaceae - (List of genera included in the family)
Suborder: Kineosporiineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders includes in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" - (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Kofleriaceae - (List of genera included in the family)
Suborder: Nannocystineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria or Deltabacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Kordiimonadaceae" - (List of genera included in the family)
Suborder:
Order: Kordiimonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Ktedonobacteraceae - (List of genera included in the family)
Suborder:
Order: Ktedonobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Ktedonobacteria - (List of orders and suborders included in the class)
Division or phylum:
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Lachnospiraceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Lactobacillaceae - (List of genera included in the family)
Suborder:
Order: Lactobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Legionellaceae - (List of genera included in the family)
Suborder:
Order: Legionellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Lentisphaeraceae" - (List of genera included in the family)
Suborder:
Order: Lentisphaerales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Lentisphaeria" - (List of orders and suborders included in the class)
Division or phylum: "Lentisphaerae" - (see Phylum "Lentisphaerae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Leptospiraceae - (List of genera included in the family)
Suborder:
Order: Spirochaetales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Spirochaetes - (List of orders and suborders included in the class)
Division or phylum: "Spirochaetes" or "Spirochaetae" (see Phylum "Spirochaetes" or "Spirochaetae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Leptotrichiaceae" - (List of genera included in the family)
Suborder:
Order: "Fusobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Fusobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Fusobacteria" - (see Phylum "Fusobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Leuconostocaceae - (List of genera included in the family)
Suborder:
Order: Lactobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Leucotrichaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Thiotrichaceae.

Listeriaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Litoricolaceae - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Lysobacteraceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Xanthomonadaceae.

"Marinilabiaceae" - (List of genera included in the family)
Suborder:
Order: "Bacteroidales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Bacteroidia" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Methanobacteriaceae - (List of genera included in the family)
Suborder:
Order: Methanobacteriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Methanobacteria (Archaeobacteria) - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanocaldococcaceae - (List of genera included in the family)
Suborder:
Order: Methanococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Methanococci (Methanothermea) - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanocellaceae - (List of genera included in the family)
Suborder:
Order: Methanocellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanococcaceae - (List of genera included in the family)
Suborder:
Order: Methanococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Methanococci (Methanothermea) - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanocorpusculaceae - (List of genera included in the family)
Suborder:
Order: Methanomicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanomicrobiaceae - (List of genera included in the family)
Suborder:
Order: Methanomicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanoplanaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Methanomicrobiaceae.

Methanopyraceae - (List of genera included in the family)
Suborder:
Order: Methanopyrales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Methanopyri - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanosaetaceae - (List of genera included in the family)
Suborder:
Order: Methanosarcinales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanosarcinaceae - (List of genera included in the family)
Suborder:
Order: Methanosarcinales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanospirillaceae - (List of genera included in the family)
Suborder:
Order: Methanomicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methanothermaceae - (List of genera included in the family)
Suborder:
Order: Methanobacteriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Methanobacteria (Archaeobacteria) - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methermicoccaceae - (List of genera included in the family)
Suborder:
Order: Methanosarcinales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Methanomicrobia" - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Methylobacteriaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Methylococcaceae - (List of genera included in the family)
Suborder:
Order: Methylococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Methylocystaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Methylophilaceae - (List of genera included in the family)
Suborder:
Order: Methylophilales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Microbacteriaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Micrococcaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Micromonosporaceae - (List of genera included in the family)
Suborder: Micromonosporineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Microsphaeraceae
The name Microsphaeraceae Rainey et al. 1997 is illegitimate, and a new family designation Nakamurellaceae has been proposed by Tao et al. 2004.

Moraxellaceae - (List of genera included in the family)
Suborder:
Order: Pseudomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Moritellaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Mycobacteriaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Mycoplasmataceae - (List of genera included in the family)
Suborder:
Order: Mycoplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Mollicutes - (List of orders and suborders included in the class)
Division or phylum: "Tenericutes" (see Phylum "Tenericutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Myxococcaceae - (List of genera included in the family)
Suborder: Cystobacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nakamurellaceae - (List of genera included in the family)
Suborder: Frankineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nannocystaceae - (List of genera included in the family)
Suborder: Nannocystineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Natranaerobiaceae - (List of genera included in the family)
Suborder:
Order: Natranaerobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nautiliaceae - (List of genera included in the family)
Suborder:
Order: Nautiliales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Epsilonproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Neisseriaceae - (List of genera included in the family)
Suborder:
Order: Neisseriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nevskiaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Xanthomonadaceae.

Nitriliruptoraceae - (List of genera included in the family)
Suborder:
Order: Nitriliruptorales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nitrobacteraceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Bradyrhizobiaceae.

Nitrosomonadaceae - (List of genera included in the family)
Suborder:
Order: Nitrosomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nitrospinaceae - (List of genera included in the family)
Suborder:
Order: Desulfobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Nitrospiraceae" - (List of genera included in the family)
Suborder:
Order: "Nitrospirales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Nitrospira" - (List of orders and suborders included in the class)
Division or phylum: "Nitrospirae" or "Nitrospira" - (see Phylum "Nitrospira" or "Nitrospirae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Nocardiaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nocardioidaceae - (List of genera included in the family)
Suborder: Propionibacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Nocardiopsaceae - (List of genera included in the family)
Suborder: Streptosporangineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Oceanospirillaceae - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Oleiphilaceae - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Opitutaceae - (List of genera included in the family)
Suborder:
Order: Opitutales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Opitutae - (List of orders and suborders included in the class)
Division or phylum: "Verrucomicrobia" (see Phylum "Verrucomicrobia" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Oscillochloridaceae - (List of genera included in the family)
Suborder:
Order: "Chloroflexales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Chloroflexi" - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Oscillospiraceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Ruminococcaceae.

Oxalobacteraceae - (List of genera included in the family)
Suborder:
Order: Burkholderiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Paenibacillaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Parachlamydiaceae - (List of genera included in the family)
Suborder:
Order: Chlamydiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Chlamydiae - (List of orders and suborders included in the class)
Division or phylum: "Chlamydiae" (see Phylum "Chlamydiae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Parvularculaceae" - (List of genera included in the family)
Suborder:
Order: "Parvularculales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Pasteurellaceae - (List of genera included in the family)
Suborder:
Order: Pasteurellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Pasteuriaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Patulibacteraceae - (List of genera included in the family)
Order: Solirubrobacterales - (List of genera included in the order - List of families included in the order)
Subclass: Rubrobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Peptococcaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Peptostreptococcaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Peredibacteraceae (illegitimate)

Phaselicystidaceae - (List of genera included in the family)
Suborder: Sorangiineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Phycisphaeraceae - (List of genera included in the family)
Suborder:
Order: Phycisphaerales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Phycisphaerae - (List of orders and suborders included in the class)
Division or phylum: "Planctomycetes" or "Planctobacteria" (see Phylum "Planctomycetes" or "Planctobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Phyllobacteriaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Picrophilaceae - (List of genera included in the family)
Suborder:
Order: Thermoplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoplasmata - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Piscirickettsiaceae - (List of genera included in the family)
Suborder:
Order: Thiotrichales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Planctomycetaceae - (List of genera included in the family)
Suborder:
Order: Planctomycetales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Planctomycea ("Planctomycetacia") - (List of orders and suborders included in the class)
Division or phylum: "Planctomycetes" or "Planctobacteria" (see Phylum "Planctomycetes" or "Planctobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Planococcaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Polyangiaceae - (List of genera included in the family)
Suborder: Sorangiineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Myxococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Porphyromonadaceae" - (List of genera included in the family)
Suborder:
Order: "Bacteroidales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Bacteroidia" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Prevotellaceae" - (List of genera included in the family)
Suborder:
Order: "Bacteroidales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Bacteroidia" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Procabacteriaceae" - (List of genera included in the family)
Suborder:
Order: "Procabacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Prochloraceae - (List of genera included in the family)
Suborder:
Order: Prochlorales - (List of genera included in the order - List of families included in the order)
Subclass:
Class:
Division or phylum: "Cyanobacteria" (see the file Classification of Cyanobacteria)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Prochlorococcaceae" - (List of genera included in the family)
Suborder:
Order: Prochlorales - (List of genera included in the order - List of families included in the order)
Subclass:
Class:
Division or phylum: "Cyanobacteria" - (see the file Classification of Cyanobacteria)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Prochlorotrichaceae - (List of genera included in the family)
Suborder:
Order: Prochlorales - (List of genera included in the order - List of families included in the order)
Subclass:
Class:
Division or phylum: "Cyanobacteria" (see the file Classification of Cyanobacteria)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Promicromonosporaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Propionibacteriaceae - (List of genera included in the family)
Suborder: Propionibacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Pseudoalteromonadaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Pseudomonadaceae - (List of genera included in the family)
Suborder:
Order: Pseudomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Pseudonocardiaceae - (List of genera included in the family)
Suborder: Pseudonocardineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Psychromonadaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Puniceicoccaceae - (List of genera included in the family)
Suborder:
Order: Puniceicoccales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Opitutae - (List of orders and suborders included in the class)
Division or phylum: "Verrucomicrobia" (see Phylum "Verrucomicrobia" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Pyrodictiaceae - (List of genera included in the family)
Suborder:
Order: Desulfurococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei (Crenarchaeota) - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Rarobacteraceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Rhizobiaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Rhodobacteraceae - (List of genera included in the family)
Suborder:
Order: Rhodobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Rhodobiaceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Rhodocyclaceae - (List of genera included in the family)
Suborder:
Order: Rhodocyclales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Rhodospirillaceae - (List of genera included in the family)
Suborder:
Order: Rhodospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Rhodothermaceae" - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Rickettsiaceae - (List of genera included in the family)
Suborder:
Order: Rickettsiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Rikenellaceae" - (List of genera included in the family)
Suborder:
Order: "Bacteroidales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Bacteroidia" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Rubritaleaceae" - (List of genera included in the family)
Suborder:
Order: Verrucomicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Verrucomicrobiae - (List of orders and suborders included in the class)
Division or phylum: "Verrucomicrobia" (see Phylum "Verrucomicrobia" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Rubrobacteraceae - (List of genera included in the family)
Suborder: "Rubrobacterineae"
Order: Rubrobacterales - (List of genera included in the order - List of families included in the order)
Subclass: Rubrobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Ruminococcaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Saccharospirillaceae" - (List of genera included in the family)
Suborder:
Order: Oceanospirillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

"Salinisphaeraceae" - (List of genera included in the family)
Suborder:
Order: "Salinisphaerales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" - (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Sanguibacteraceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Saprospiraceae" - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" - (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Segniliparaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Shewanellaceae - (List of genera included in the family)
Suborder:
Order: Alteromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Simkaniaceae - (List of genera included in the family)
Suborder:
Order: Chlamydiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Chlamydiae - (List of orders and suborders included in the class)
Division or phylum: "Chlamydiae" (see Phylum "Chlamydiae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Simonsiellaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Neisseriaceae.

Sinobacteraceae - (List of genera included in the family)
Suborder:
Order: Xanthomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Sneathiellaceae - (List of genera included in the family)
Suborder:
Order: Sneathiellales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Solirubrobacteraceae - (List of genera included in the family)
Order: Solirubrobacterales - (List of genera included in the order - List of families included in the order)
Subclass: Rubrobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Sphaerobacteraceae - (List of genera included in the family)
Suborder: "Sphaerobacterineae"
Order: Sphaerobacterales - (List of genera included in the order - List of families included in the order)
Subclass: Sphaerobacteridae - (List of orders and suborders included in the subclass)
Class: Thermomicrobia - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Sphingobacteriaceae - (List of genera included in the family)
Suborder:
Order: "Sphingobacteriales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Sphingobacteria" - (List of orders and suborders included in the class)
Division or phylum: "Bacteroidetes" (see Phylum "Bacteroidetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Sphingomonadaceae - (List of genera included in the family)
Suborder:
Order: Sphingomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Spirillaceae - (List of genera included in the family)
Suborder:
Order: Nitrosomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Betaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Spirochaetaceae - (List of genera included in the family)
Suborder:
Order: Spirochaetales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Spirochaetes - (List of orders and suborders included in the class)
Division or phylum: "Spirochaetes" or "Spirochaetae") (see Phylum "Spirochaetes" or "Spirochaetae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Spiroplasmataceae - (List of genera included in the family)
Suborder:
Order: Entomoplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Mollicutes - (List of orders and suborders included in the class)
Division or phylum: "Tenericutes" (see Phylum "Tenericutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Spirosomaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Cytophagaceae.

Sporichthyaceae - (List of genera included in the family)
Suborder: Frankineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Sporolactobacillaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Staphylococcaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Streptococcaceae - (List of genera included in the family)
Suborder:
Order: Lactobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Streptomycetaceae - (List of genera included in the family)
Suborder: Streptomycineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Streptosporangiaceae - (List of genera included in the family)
Suborder: Streptosporangineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Succinivibrionaceae - (List of genera included in the family)
Suborder:
Order: Aeromonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Sulfolobaceae - (List of genera included in the family)
Suborder:
Order: Sulfolobales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei (Crenarchaeota) - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Synergistaceae - (List of genera included in the family)
Suborder:
Order: Synergistales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Synergistia - (List of orders and suborders included in the class)
Division or phylum: "Synergistetes" - (see Phylum "Synergistetes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Syntrophaceae - (List of genera included in the family)
Suborder:
Order: Syntrophobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Syntrophobacteraceae - (List of genera included in the family)
Suborder:
Order: Syntrophobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deltaproteobacteria (Deltabacteria)- (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Syntrophomonadaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Syntrophorhabdaceae
Suborder:
Order:
Subclass:
Class: Deltaproteobacteria (Deltabacteria) - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermaceae - (List of genera included in the family)
Suborder:
Order: Thermales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deinococci - (List of orders and suborders included in the class)
Division or phylum: "Deinococcus-Thermus" (see Phylum "Deinococcus-Thermus" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermithiobacillaceae - (List of genera included in the family)
Suborder:
Order: Acidithiobacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermoactinomycetaceae - (List of genera included in the family)
Suborder:
Order: Bacillales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Bacilli (or Firmibacteria) - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermoanaerobacteraceae - (List of genera included in the family)
Suborder:
Order: Thermoanaerobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermococcaceae - (List of genera included in the family)
Suborder:
Order: Thermococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermococci (Protoarchaea) - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Thermodesulfobacteriaceae - (List of genera included in the family)
Suborder:
Order: Thermodesulfobacteriales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermodesulfobacteria - (List of orders and suborders included in the class)
Division or phylum: "Thermodesulfobacteria" (see Phylum "Thermodesulfobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermodesulfobiaceae - (List of genera included in the family)
Suborder:
Order: Thermoanaerobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermofilaceae - (List of genera included in the family)
Suborder:
Order: Thermoproteales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei (Crenarchaeota) - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Thermoleophilaceae - (List of genera included in the family)
Order: Thermoleophilales - (List of genera included in the order - List of families included in the order)
Subclass: Rubrobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermolithobacteraceae - (List of genera included in the family)
Suborder:
Order: Thermolithobacterales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermolithobacteria - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermomicrobiaceae - (List of genera included in the family)
Suborder:
Order: Thermomicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermomicrobia - (List of orders and suborders included in the class)
Division or phylum: "Chloroflexi" (see Phylum "Chloroflexi" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermomonosporaceae - (List of genera included in the family)
Suborder: Streptosporangineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thermoplasmataceae - (List of genera included in the family)
Suborder:
Order: Thermoplasmatales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoplasmata - (List of orders and suborders included in the class)
Division or phylum: "Euryarchaeota" (see Phylum "Euryarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Thermoproteaceae - (List of genera included in the family)
Suborder:
Order: Thermoproteales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermoprotei (Crenarchaeota) - (List of orders and suborders included in the class)
Division or phylum: "Crenarchaeota" (see Phylum "Crenarchaeota" in the file Classification of domains and phyla)
Domain or empire: "Archaea" (see Domain "Archaea" in the file Classification of domains and phyla)

Thermotogaceae - (List of genera included in the family)
Suborder:
Order: Thermotogales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Thermotogae - (List of orders and suborders included in the class)
Division or phylum: "Thermotogae" (see Phylum "Thermotogae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Thiocapsaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Chromatiaceae.

Thiotrichaceae - (List of genera included in the family)
Suborder:
Order: Thiotrichales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Treponemataceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Spirochaetaceae.

Trueperaceae - (List of genera included in the family)
Suborder:
Order: Deinococcales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Deinococci - (List of orders and suborders included in the class)
Division or phylum: "Deinococcus-Thermus" (see Phylum "Deinococcus-Thermus" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Tsukamurellaceae - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Veillonellaceae - (List of genera included in the family)
Suborder:
Order: Clostridiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Clostridia - (List of orders and suborders included in the class)
Division or phylum: "Firmicutes" - (see Phylum "Firmicutes" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Verrucomicrobiaceae - (List of genera included in the family)
Suborder:
Order: Verrucomicrobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Verrucomicrobiae - (List of orders and suborders included in the class)
Division or phylum: "Verrucomicrobia" (see Phylum "Verrucomicrobia" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Vibrionaceae - (List of genera included in the family)
Suborder:
Order: "Vibrionales" - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Victivallaceae" - (List of genera included in the family)
Suborder:
Order: Victivallales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: "Lentisphaeria" - (List of orders and suborders included in the class)
Division or phylum: "Lentisphaerae" - (see Phylum "Lentisphaerae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Vitreoscillaceae
Family not widely accepted by the community of microbiologists. The type genus of the family is classified in the family Neisseriaceae.

Waddliaceae - (List of genera included in the family)
Suborder:
Order: Chlamydiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Chlamydiae - (List of orders and suborders included in the class)
Division or phylum: "Chlamydiae" (see Phylum "Chlamydiae" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

"Williamsiaceae" - (List of genera included in the family)
Suborder: Corynebacterineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders includes in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" - (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" - (see Domain "Bacteria" in the file Classification of domains and phyla)

Xanthobacteraceae - (List of genera included in the family)
Suborder:
Order: Rhizobiales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Alphaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Xanthomonadaceae - (List of genera included in the family)
Suborder:
Order: Xanthomonadales - (List of genera included in the order - List of families included in the order)
Subclass:
Class: Gammaproteobacteria - (List of orders and suborders included in the class)
Division or phylum: "Proteobacteria" (see Phylum "Proteobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)

Yaniaceae see Yaniellaceae

Yaniellaceae - (List of genera included in the family)
Suborder: Micrococcineae - (List of genera included in the suborder - List of families included in the suborder)
Order: Actinomycetales - (List of genera included in the order - List of families included in the order)
Subclass: Actinobacteridae - (List of orders and suborders included in the subclass)
Class: Actinobacteria - (List of orders and suborders included in the class)
Division or phylum: "Actinobacteria" (see Phylum "Actinobacteria" in the file Classification of domains and phyla)
Domain or empire: "Bacteria" (see Domain "Bacteria" in the file Classification of domains and phyla)