Title

Classification of domains and phyla - Hierarchical classification of prokaryotes (bacteria)

See also the file Classification of prokaryotes (bacteria): Introduction

Introduction

The two prokaryotic domains (or empires), "Bacteria" (or "Eubacteria") and "Archaea" (or "Archaeobacteria"), are subdivided into 35 phyla (or divisions): 30 phyla in the domain "Bacteria", and 5 phyla in the domain "Archaea".
This file provides, alphabetically, the list of phyla included in the domains "Bacteria" and "Archaea". The classes, subclasses, orders, suborders, families and genera included in the phyla are also cited.
Taxa above the rank of class are not covered by the Rules of the Bacteriological Code (1990 Revision). Such names cannot be validly published and they are cited below in quotes.

Domain "Bacteria"

Phyla

"Acidobacteria" - "Actinobacteria" - "Aquificae" - "Armatimonadetes" - "Bacteroidetes" - "Caldiserica" - "Chlamydiae" - "Chlorobi" - "Chloroflexi" - "Chrysiogenetes" - "Cyanobacteria" - "Deferribacteres" - "Deinococcus-Thermus" - "Dictyoglomi" - "Elusimicrobia" - "Fibrobacteres" - "Firmicutes" - "Fusobacteria" - "Gemmatimonadetes" - "Lentisphaerae" - "Nitrospira" - "Planctomycetes" - "Proteobacteria" - "Spirochaetes" - "Synergistetes" - "Tenericutes" - "Thermodesulfobacteria" - "Thermomicrobia" - "Thermotogae" - "Verrucomicrobia"

Phylum Acidobacteria

Class Acidobacteria

Order Acidobacteriales

Family Acidobacteriaceae
Acidicapsa - Acidobacterium - Bryocella - Edaphobacter - Granulicella - Telmatobacter - Terriglobus

Unclassified Acidobacteria Bryobacter

Class Holophagae

Order Acanthopleuribacterales

Family Acanthopleuribacteraceae
Acanthopleuribacter

Order Holophagales

Family Holophagaceae
 Geothrix - Holophaga

Phylum "Actinobacteria"

Class Actinobacteria

Subclass Acidimicrobidae

Order Acidimicrobiales

Suborder "Acidimicrobineae"

Family Acidimicrobiaceae
Acidimicrobium - Ferrimicrobium - Ferrithrix - Ilumatobacter

Family Iamiaceae
Iamia

Unclassified "Acidimicrobineae" Aciditerrimonas

Subclass Actinobacteridae

Order Actinomycetales

Suborder Actinomycineae

Family Actinomycetaceae
Actinobaculum - Actinomyces - Arcanobacterium - Falcivibrio - Flaviflexus - Mobiluncus - Trueperella - Varibaculum

Suborder Actinopolysporineae

Family Actinopolysporaceae
Actinopolyspora

Suborder Catenulisporineae

Family Actinospicaceae
Actinospica

Family Catenulisporaceae
Catenulispora

Suborder Corynebacterineae

Family Corynebacteriaceae
Bacterionema - Caseobacter - Corynebacterium - Turicella

Family Dietziaceae
Dietzia

Family Gordoniaceae
See Nocardiaceae [Zhi et al. 2009 propose to combine the families Nocardiaceae and Gordoniaceae (genera Gordonia, Millisia, and Skermania) in an emended family Nocardiaceae]

Family Mycobacteriaceae
Amycolicicoccus - Mycobacterium

Family Nocardiaceae See also Gordoniaceae [Zhi et al. 2009 propose to combine the families Nocardiaceae and Gordoniaceae (genera Gordonia, Millisia and Skermania) in an emended family Nocardiaceae]
Gordonia - Micropolyspora - Millisia - Nocardia - Rhodococcus - Skermania - Smaragdicoccus - Williamsia

Family Segniliparaceae
Segniliparus

Family Tsukamurellaceae
Tsukamurella

Unclassified suborder Corynebacterineae Hoyosella - Tomitella

Suborder Frankineae

Family Acidothermaceae
Acidothermus

Family Cryptosporangiaceae
Cryptosporangium - Fodinicola

Family Frankiaceae
Frankia - Jatrophihabitans

Family Geodermatophilaceae
Blastococcus - Geodermatophilus - Modestobacter

Family Nakamurellaceae
Humicoccus - Nakamurella - Saxeibacter

Family Sporichthyaceae
Sporichthya

Unclassified suborder Frankineae Motilibacter

Suborder Glycomycineae

Family Glycomycetaceae
Glycomyces - Haloglycomyces - Stackebrandtia

Suborder Jiangellineae

Family Jiangellaceae
Jiangella - Haloactinopolyspora

Suborder Kineosporiineae

Family Kineosporiaceae
Angustibacter - Kineococcus - Kineosporia - Pseudokineococcus - Quadrisphaera

Suborder Micrococcineae

Family Beutenbergiaceae
Beutenbergia - Miniimonas - Salana - Serinibacter

Family Bogoriellaceae
Bogoriella - Georgenia - Oceanitalea

Family Brevibacteriaceae
Brevibacterium

Family Cellulomonadaceae
Actinotalea -Cellulomonas - Oerskovia - Paraoerskovia - Sediminihabitans - Tropheryma

Family Demequinaceae
Demequina - Lysinimicrobium

Family Dermabacteraceae
Brachybacterium - Dermabacter - Devriesea - Helcobacillus

Family Dermacoccaceae
Barrientosiimonas - Branchiibius - Calidifontibacter - Demetria - Dermacoccus - Flexivirga - Kytococcus - Luteipulveratus - Rudaeicoccus - Tamlicoccus - Yimella

Family Dermatophilaceae
Austwickia - Dermatophilus - Kineosphaera - Mobilicoccus - Piscicoccus

Family Intrasporangiaceae
Aquipuribacter - Arsenicicoccus - Fodinibacter - Humibacillus - Humihabitans - Intrasporangium - Janibacter - Knoellia - Kribbia - Lapillicoccus - Marihabitans - Ornithinibacter - Ornithinicoccus - Ornithinimicrobium - Oryzihumus - Phycicoccus - Serinicoccus - Terrabacter - Terracoccus - Tetrasphaera

Family Jonesiaceae
Jonesia

Family Microbacteriaceae
Agreia - Agrococcus - Agromyces - Alpinimonas - Amnibacterium - Aureobacterium - Chryseoglobus - Clavibacter - Compostimonas - Cryobacterium - Curtobacterium - Diaminobutyricimonas - Frigoribacterium - Frondihabitans - Glaciibacter - Gryllotalpicola - Gulosibacter - Herbiconiux - Homoserinimonas - Humibacter - Klugiella - Labedella - Leifsonia - Leucobacter - Lysinimonas - Marisediminicola - Microbacterium - Microcella - Microterricola - Mycetocola - Okibacterium - Phycicola - Plantibacter - Pontimonas - Pseudoclavibacter - Rathayibacter - Rhodoglobus - Salinibacterium - Schumannella - Subtercola - Yonghaparkia - Zimmermannella

Family Micrococcaceae
Acaricomes - Arthrobacter - Auritidibacter - Citricoccus - Enteractinococcus - Kocuria - Micrococcus - Nesterenkonia - Pelczaria (rejected name) - Renibacterium - Rothia - Sinomonas - Stomatococcus - Yaniella - Zhihengliuella

Family Promicromonosporaceae
Cellulosimicrobium - Isoptericola - Myceligenerans - Promicromonospora - Xylanibacterium - Xylanimicrobium - Xylanimonas

Family Rarobacteraceae
Rarobacter

Family Ruaniaceae
Haloactinobacterium - Ruania

Family Sanguibacteraceae
Sanguibacter

Family Yaniellaceae 
Note: The genus ¤ Yaniella Li et al. 2008 (the type genus of the family ¤ Yaniellaceae Li et al. 2008) is in most 16S rRNA gene sequence-based phylogenetic analyses a member of the family ¤ Micrococcaceae Pribram 1929 (Approved Lists 1980). According to Schumann et al. 2009, it appears debatable whether it deserves the status as the type genus of its own family Yaniellaceae. According to Yassin et al. 2011, ¤ Yaniellaceae Li et al. 2008 is a later heterotypic synonym of ¤ Micrococcaceae Pribram 1929 (Approved Lists 1980).
References:
1 SCHUMANN (P.), KÄMPFER (P.), BUSSE (H.J.) and EVTUSHENKO (L.I.): Proposed minimal standards for describing new genera and species of the suborder Micrococcineae. Int. J. Syst. Evol. Microbiol., 2009, 59, 1823-1849.
Original article in IJSEM Online
2 YASSIN (A.F.), HUPFER (H.), SIERING (C.), KLENK (H.P.) and SCHUMANN (P.): Auritidibacter ignavus gen. nov., sp. nov., of the family Micrococcaceae, isolated from an ear swab of a man with otitis externa, transfer of the members of the family Yaniellaceae Li et al. 2008 to the family Micrococcaceae and emended description of the suborder Micrococcineae. Int. J. Syst. Evol. Microbiol., 2011, 61, 223-230.
Original article in IJSEM Online

Unclassified suborder Micrococcineae Koreibacter - Luteimicrobium

Suborder Micromonosporineae

Family Micromonosporaceae
Actinaurispora - Actinocatenispora - Actinoplanes - Allocatelliglobosispora - Amorphosporangium - Ampullariella - Asanoa - Catellatospora - Catelliglobosispora - Catenuloplanes - Couchioplanes - Dactylosporangium - Hamadaea - Jishengella - Krasilnikovia - Longispora - Luedemannella - Micromonospora - Phytohabitans - Phytomonospora - Pilimelia - Planopolyspora - Planosporangium - Plantactinospora - Polymorphospora - Pseudosporangium - Rugosimonospora - Salinispora - Spirilliplanes - Verrucosispora - Virgisporangium - Xiangella

Suborder Propionibacterineae

Family Nocardioidaceae
Actinopolymorpha - Aeromicrobium - Hongia - Flindersiella - Kribbella - Marmoricola - Nocardioides - Pimelobacter- Thermasporomyces

Family Propionibacteriaceae
Aestuariimicrobium - Arachnia - Auraticoccus - Brooklawnia - Friedmanniella - Granulicoccus - Luteococcus - Microlunatus - Micropruina - Naumannella - Propionibacterium - Propionicicella - Propioniciclava - Propionicimonas - Propioniferax - Propionimicrobium - Tessaracoccus

Suborder Pseudonocardineae

Family Actinosynnemataceae
Note: According to Labeda et al. 2011, ¤ Actinosynnemataceae Labeda and Kroppenstedt 2000 emend. Zhi et al. 2009 is a later heterotypic synonym of ¤ Pseudonocardiaceae Embley et al. 1989 emend. Labeda et al. 2011.
Reference: LABEDA (D.P.), GOODFELLOW (M.), CHUN (J.), ZHI (X.Y.) and LI (W.J.): Reassessment of the systematics of the suborder Pseudonocardineae: transfer of the genera within the family Actinosynnemataceae Labeda and Kroppenstedt 2000 emend. Zhi et al. 2009 into an emended family Pseudonocardiaceae Embley et al. 1989 emend. Zhi et al. 2009. Int. J. Syst. Evol. Microbiol., 2011, 61, 1259-1264.
Original article in IJSEM Online

Family Pseudonocardiaceae
Actinoalloteichus - Actinobispora - Actinokineospora - Actinomycetospora - Actinophytocola - Actinosynnema - Alloactinosynnema - Allokutzneria - Amycolata - Amycolatopsis - Crossiella - Faenia - Goodfellowiella - Haloechinothrix - Kibdelosporangium - Kutzneria - Labedaea - Lechevalieria - Lentzea - Prauserella - Pseudoamycolata - Pseudonocardia - Saccharomonospora - Saccharopolyspora - Saccharothrix - Sciscionella - Streptoalloteichus - Thermobispora - Thermocrispum - Umezawaea - Yuhushiella 

Suborder Streptomycineae

Family Streptomycetaceae
Actinopycnidium - Actinosporangium - Chainia - Elytrosporangium - Kitasatoa - Kitasatospora - Microellobosporia - Streptacidiphilus - Streptomyces - Streptoverticillium

Suborder Streptosporangineae

Family Nocardiopsaceae
Haloactinospora - Marinactinospora - Murinocardiopsis - Nocardiopsis - Salinactinospora - Spinactinospora - Streptomonospora - Thermobifida

Family Streptosporangiaceae
Acrocarpospora - Herbidospora - Microbispora - Microtetraspora - Nonomuraea - Planobispora - Planomonospora - Planotetraspora - Sphaerisporangium - Streptosporangium - Thermoactinospora - Thermocatellispora - Thermopolyspora

Family Thermomonosporaceae
Actinoallomurus - Actinocorallia - Actinomadura - Excellospora - Spirillospora - Thermomonospora

Unclassified suborder Streptosporangineae Allonocardiopsis - Sinosporangium

Order Bifidobacteriales

Family Bifidobacteriaceae
Aeriscardovia - Alloscardovia - Bifidobacterium - Gardnerella - Metascardovia - Parascardovia - Scardovia  

Subclass Coriobacteridae

Order Coriobacteriales

Suborder "Coriobacterineae"

Family Coriobacteriaceae
Adlercreutzia - Asaccharobacter - Atopobium - Collinsella - Coriobacterium - Cryptobacterium - Denitrobacterium - Eggerthella - Enterorhabdus - Gordonibacter - Olsenella - Paraeggerthella - Slackia

Subclass Nitriliruptoridae

Order Euzebyales

Family Euzebyaceae
Euzebya

Order Nitriliruptorales

Family Nitriliruptoraceae
Nitriliruptor

Subclass Rubrobacteridae

Order Gaiellales

Family Gaiellaceae
Gaiella 

Order Rubrobacterales

Suborder "Rubrobacterineae"

Family Rubrobacteraceae
Rubrobacter 

Order Solirubrobacterales

Family Conexibacteraceae
Conexibacter

Family Patulibacteraceae
Patulibacter

Family Solirubrobacteraceae
Solirubrobacter

Order Thermoleophilales

Family Thermoleophilaceae
Thermoleophilum

 

Phylum "Aquificae"

Class Aquificae

Order Aquificales

Family Aquificaceae
Aquifex - Calderobacterium - Hydrogenivirga - Hydrogenobacter - Hydrogenobaculum - Thermocrinis

Family Desulfurobacteriaceae
Balnearium - Desulfurobacterium - Phorcysia - Thermovibrio

Family Hydrogenothermaceae
Hydrogenothermus - Persephonella - Sulfurihydrogenibium - Venenivibrio

Unclassified Aquificales Thermosulfidibacter

 

Phylum "Armatimonadetes"

Class Armatimonadia

Order Armatimonadales

Family Armatimonadaceae
Armatimonas

Class Chthonomonadetes

Order Chthonomonadales

Family Chthonomonadaceae
Chthonomonas

Class Fimbriimonadia

Order Fimbriimonadales

Family Fimbriimonadaceae
Fimbriimonas

 

Phylum "Bacteroidetes"

Class Bacteroidia

Order Bacteroidales

Family Bacteroidaceae
Acetofilamentum - Acetomicrobium - Acetothermus - Anaerorhabdus - Bacteroides -Capsularis

Family Marinilabiliaceae
Alkaliflexus - Alkalitalea - Anaerophaga - Geofilum - Mangroviflexus - Marinilabilia - Natronoflexus - Thermophagus

Family Porphyromonadaceae
Barnesiella - Butyricimonas - Dysgonomonas - Macellibacteroides - Odoribacter - Oribaculum - Paludibacter - Parabacteroides - Petrimonas - Porphyromonas - Proteiniphilum - Tannerella

Family Prevotellaceae
Alloprevotella - Hallella - Paraprevotella - Prevotella - Xylanibacter

Family Rikenellaceae
Alistipes - Anaerocella - Rikenella 

Unclassified Bacteroidales Phocaeicola - Sunxiuqinia

Class Cytophagia

Order Cytophagales

Family Catalimonadaceae
Catalinimonas

Family Cyclobacteriaceae
Algoriphagus - Aquiflexum - Belliella - Cecembia - Chimaereicella - Cyclobacterium - Echinicola - Fontibacter - Hongiella - Indibacter - Mariniradius - Mongoliicoccus - Mongoliitalea - Nitritalea - Shivajiella

Family Cytophagaceae
Adhaeribacter - Arcicella - Cytophaga - Dyadobacter - Effluviibacter - Ekhidna - Emticicia - Fibrella - Fibrisoma - Flectobacillus - Flexibacter - Huanghella - Hymenobacter - Larkinella - Leadbetterella - Litoribacter - Meniscus - Microscilla - Persicitalea - Pontibacter - Pseudarcicella - Rhodocytophaga - Rhodonellum - Rudanella - Runella - Siphonobacter - Spirosoma - Sporocytophaga

Family Flammeovirgaceae
Aureibacter - Cesiribacter - Fabibacter - Flammeovirga - Flexithrix - Fulvitalea - Fulvivirga - Limibacter - Marinicola - Marinoscillum - Marivirga - Nafulsella - Perexilibacter - Persicobacter - Rapidithrix - Reichenbachiella - Roseivirga - Sediminitomix - Thermonema

Family Mooreiaceae
Mooreia

Family Rhodothermaceae
Rhodothermus - Rubricoccus - Rubrivirga - Salinibacter - Salisaeta

Unclassified Cytophagales Chryseolinea - Luteivirga - Ohtaekwangia

Class Flavobacteriia

Order Flavobacteriales

Family Blattabacteriaceae
Blattabacterium

Family Cryomorphaceae
Brumimicrobium - Crocinitomix - Cryomorpha - Fluviicola - Lishizhenia - Owenweeksia - Phaeocystidibacter - Salinirepens - Wandonia

Family Flavobacteriaceae
Actibacter - Aequorivita - Aestuariibaculum - Aestuariicola - Algibacter - Aquimarina - Arenibacter - Aureicoccus - Aureitalea - Aureivirga - Bergeyella - Bizionia - Capnocytophaga - Cellulophaga - Chryseobacterium - Cloacibacterium - Coenonia - Corallibacter - Costertonia - Croceibacter - Croceitalea - Cruoricaptor - Dokdonia - Donghaeana - Elizabethkingia - Empedobacter - Epilithonimonas - Eudoraea - Euzebyella - Flagellimonas - Flaviramulus - Flavivirga - Flavobacterium - Formosa - Fulvibacter - Gaetbulibacter - Gaetbulimicrobium - Galbibacter - Gangjinia - Gelidibacter - Gillisia - Gilvibacter - Gramella - Hyunsoonleella - Imtechella - Jejuia - Joostella - Kaistella - Kordia - Kriegella - Krokinobacter - Lacinutrix - Leeuwenhoekiella - Leptobacterium - Lutaonella - Lutibacter - Lutimonas - Mangrovimonas - Maribacter - Mariniflexile - Marinivirga - Maritimimonas - Marixanthomonas - Meridianimaribacter - Mesoflavibacter - Mesonia - Muricauda - Muriicola - Myroides - Namhaeicola - Nonlabens - Olleya - Ornithobacterium - Persicivirga - Pibocella - Planobacterium - Polaribacter - Pontirhabdus - Postechiella - Pricia - Pseudofulvibacter - Pseudozobellia - Psychroflexus - Psychroserpens - Riemerella - Robiginitalea - Salinimicrobium - Salegentibacter - Sandarakinotalea - Sediminibacter - Sediminicola - Sejongia - Siansivirga - Sinomicrobium - Snuella - Soonwooa - Spongiibacterium - Stanierella - Stenothermobacter - Subsaxibacter - Subsaximicrobium - Sungkyunkwania - Tamlana - Tenacibaculum - Ulvibacter - Vitellibacter - Wautersiella - Weeksella - Winogradskyella - Yeosuana - Zeaxanthinibacter - Zhouia - Zobellia - Zunongwangia

 Family Schleiferiaceae
Schleiferia

Class Sphingobacteriia

Order Sphingobacteriales

Family Chitinophagaceae
Balneola - Chitinophaga - Ferruginibacter - Filimonas - Flavihumibacter - Flavisolibacter - Flavitalea - Gracilimonas - Hydrotalea - Lacibacter - Niabella - Niastella - Parasegetibacter - Sediminibacterium - Segetibacter - Terrimonas

Family Saprospiraceae
Aureispira - Haliscomenobacter - Lewinella - Saprospira

Family Sphingobacteriaceae
Arcticibacter - Mucilaginibacter - Nubsella - Olivibacter - Parapedobacter - Pedobacter - Pseudosphingobacterium - Solitalea - Sphingobacterium

Unclassified Sphingobacteriales Fodinibius

 

Unclassified "Bacteroidetes" Marinifilum - Prolixibacter - Toxothrix

 

 

Phylum "Caldiserica"

Class Caldisericia

Order Caldisericales

Family Caldisericaceae
Caldisericum

 

Phylum "Chlamydiae"

Class Chlamydiae

Order Chlamydiales

Family Chlamydiaceae
Chlamydia - Chlamydophila

Family Parachlamydiaceae
Neochlamydia - Parachlamydia

Family Simkaniaceae
Simkania

Family Waddliaceae
Waddlia

 

Phylum "Chlorobi"

Class "Chlorobia" or Chlorobea

Order Chlorobiales

Family Chlorobiaceae
Ancalochloris - Chlorobaculum - Chlorobium - Chloroherpeton - Pelodictyon - Prosthecochloris

Class Ignavibacteria

Order Ignavibacteriales

Family Ignavibacteriaceae
Ignavibacterium

 

Phylum "Chloroflexi"

Class Anaerolineae

Order Anaerolineales

Family Anaerolineaceae
Anaerolinea - Bellilinea - Leptolinea - Levilinea - Longilinea - Ornatilinea

Class Caldilineae

Order Caldilineales

Family Caldilineaceae
Caldilinea - Litorilinea

Class Chloroflexia

Order Chloroflexales

Suborder Chloroflexineae

Family Chloroflexaceae
Chloroflexus

Family Oscillochloridaceae
Chloronema - Oscillochloris

Suborder Roseiflexineae

Family Roseiflexaceae
Heliothrix - Roseiflexus

Order Herpetosiphonales

Family Herpetosiphonaceae
Herpetosiphon

Class Dehalococcoidia

Order Dehalococcoidales

Family Dehalococcoidaceae
Dehalococcoides - Dehalogenimonas

Class Ktedonobacteria

Order Ktedonobacterales

Family Ktedonobacteraceae
Ktedonobacter

Family Thermosporotrichaceae
Thermosporothrix

Order Thermogemmatisporales

Family Thermogemmatisporaceae

Thermogemmatispora

Class Thermomicrobia

Order Thermomicrobiales

Family Thermomicrobiaceae
Thermomicrobium

Subclass Sphaerobacteridae

Order Sphaerobacterales

Suborder "Sphaerobacterineae"

Family Sphaerobacteraceae
Sphaerobacter

 

Phylum "Chrysiogenetes"

Class Chrysiogenetes

Order Chrysiogenales

Family Chrysiogenaceae
Chrysiogenes - Desulfurispira - Desulfurispirillum

 

Phylum "Cyanobacteria" (see the file Classification of Cyanobacteria)

 

Phylum "Deferribacteres"

Class Deferribacteres

Order Deferribacterales

Family Deferribacteraceae
Calditerrivibrio - Deferribacter - Denitrovibrio - Flexistipes - Geovibrio - Mucispirillum

Unclassified Deferribacterales Caldithrix

 

Phylum "Deinococcus-Thermus"

Class Deinococci

Order Deinococcales

Family Deinococcaceae
Deinobacter - Deinobacterium - Deinococcus

Family Trueperaceae
Truepera

Order Thermales

Family Thermaceae
Marinithermus - Meiothermus - Oceanithermus - Rhabdothermus - Thermus - Vulcanithermus

 

Phylum "Dictyoglomi"

Class Dictyoglomia

Order Dictyoglomales

Family Dictyoglomaceae
Dictyoglomus

 

Phylum "Elusimicrobia"

Class Elusimicrobia

Order Elusimicrobiales

Family Elusimicrobiaceae
Elusimicrobium

   

Phylum "Fibrobacteres"

Class Fibrobacteria

Order Fibrobacterales

Family Fibrobacteraceae
Fibrobacter

 

Phylum "Firmicutes"

Class Bacilli (or Firmibacteria)

Order Bacillales

Family Alicyclobacillaceae
Alicyclobacillus - Kyrpidia - Tumebacillus

Family Bacillaceae
Aeribacillus - Alkalibacillus - Allobacillus - Alteribacillus - Amphibacillus - Anaerobacillus - Anoxybacillus - Aquisalibacillus - Bacillus - Caldalkalibacillus - Caldibacillus - Calditerricola - Cerasibacillus - Domibacillus - Falsibacillus - Filobacillus - Geobacillus - Gracilibacillus - Halalkalibacillus - Halobacillus - Halolactibacillus - Hydrogenibacillus - Lentibacillus - Lysinibacillus - Marinococcus - Microaerobacter - Natribacillus - Natronobacillus - Oceanobacillus - Ornithinibacillus - Paraliobacillus - Paucisalibacillus - Pelagibacillus - Piscibacillus - Pontibacillus - Psychrobacillus - Saccharococcus - Salibacillus - Salimicrobium - Salinibacillus - Salirhabdus - Salisediminibacterium - Saliterribacillus - Salsuginibacillus - Sediminibacillus - Streptohalobacillus - Tenuibacillus - Terribacillus - Thalassobacillus - Virgibacillus - Viridibacillus - Vulcanibacillus

Family Listeriaceae
Brochothrix - Listeria

Family Paenibacillaceae
Ammoniphilus - Aneurinibacillus - Brevibacillus - Cohnella - Fontibacillus - Oxalophagus - Paenibacillus - Saccharibacillus - Thermobacillus

Family Pasteuriaceae
Pasteuria

Family Planococcaceae
Bhargavaea - Caryophanon - Chryseomicrobium -  Filibacter - Jeotgalibacillus - Kurthia - Marinibacillus - Paenisporosarcina - Planococcus - Planomicrobium - Sporosarcina - Ureibacillus

Family Sporolactobacillaceae
Pullulanibacillus - Sinobaca - Sporolactobacillus - Tuberibacillus

Family Staphylococcaceae
Jeotgalicoccus - Macrococcus - Nosocomiicoccus - Salinicoccus - Staphylococcus

Family Thermoactinomycetaceae
Desmospora - Kroppenstedtia - Laceyella - Lihuaxuella - Marininema - Mechercharimyces - Melghirimyces - Planifilum - Polycladomyces - Seinonella - Shimazuella - Thermoactinomyces - Thermoflavimicrobium

Unclassified Bacillales Chungangia - Exiguobacterium - Gemella - Geomicrobium - Rummeliibacillus - Solibacillus - Thermicanus

Order Lactobacillales

Family Aerococcaceae
Abiotrophia - Aerococcus - Dolosicoccus - Eremococcus - Facklamia - Globicatella - Ignavigranum

Family Carnobacteriaceae
Agitococcus - Alkalibacterium - Allofustis - Alloiococcus - Atopobacter - Atopococcus - Atopostipes - Carnobacterium - Desemzia - Dolosigranulum - Granulicatella - Isobaculum - Lacticigenium - Lactosphaera - Marinilactibacillus - Pisciglobus - Trichococcus

Family Enterococcaceae
Bavariicoccus - Catellicoccus - Enterococcus - Melissococcus - Pilibacter - Tetragenococcus - Vagococcus

Family Lactobacillaceae
Lactobacillus - Paralactobacillus - Pediococcus  - Sharpea

Family Leuconostocaceae
Fructobacillus - Leuconostoc - Oenococcus - Weissella

Family Streptococcaceae
Lactococcus - Lactovum - Streptococcus

Class Clostridia

Order Clostridiales

Family Caldicoprobacteraceae
Caldicoprobacter

Family Christensenellaceae
Christensenella

Family Clostridiaceae
Alkaliphilus - Anaerobacter - Anaerosalibacter - Anaerosporobacter - Anoxynatronum - Brassicibacter - Butyricicoccus - Caloramator - Caloranaerobacter - Caminicella - Cellulosibacter - Clostridiisalibacter - Clostridium - Fervidicella - Fonticella - Geosporobacter - Lactonifactor - Lutispora - Natronincola - Oxobacter - Proteiniclasticum - Saccharofermentans - Salimesophilobacter - Sarcina - Sporosalibacterium - Tepidimicrobium - Thermobrachium - Thermohalobacter - Thermotalea - Tindallia

Family Defluviitaleaceae
Defluviitalea

Family Eubacteriaceae
Acetobacterium - Alkalibacter - Alkalibaculum - Anaerofustis - Eubacterium - Garciella - Pseudoramibacter

Family Gracilibacteraceae
Gracilibacter

Family Heliobacteriaceae
Heliobacillus - Heliobacterium - Heliophilum - Heliorestis

Family Lachnospiraceae
Acetatifactor - Acetitomaculum - Anaerostipes - Butyrivibrio - Catonella - Cellulosilyticum - Coprococcus - Dorea - Hespellia - Johnsonella - Lachnoanaerobaculum - Lachnobacterium - Lachnospira - Marvinbryantia - Moryella - Oribacterium - Parasporobacterium - Pseudobutyrivibrio - Robinsoniella - Roseburia - Shuttleworthia - Sporobacterium - Stomatobaculum - Syntrophococcus

Family Oscillospiraceae
Oscillibacter - Oscillospira

Family Peptococcaceae
Cryptanaerobacter - Dehalobacter  - Desulfitibacter - Desulfitispora - Desulfitobacterium - Desulfonispora - Desulfosporosinus - Desulfotomaculum - Desulfurispora - Pelotomaculum - Peptococcus - Sporotomaculum - Syntrophobotulus - Thermincola - Thermoterrabacterium

Family Peptostreptococcaceae
Anaerosphaera - Filifactor - Peptostreptococcus - Sporacetigenium - Tepidibacter

Family Ruminococcaceae
Acetanaerobacterium - Acetivibrio - Anaerofilum - Anaerotruncus - Ethanoligenens - Faecalibacterium - Fastidiosipila - Hydrogenoanaerobacterium - Papillibacter - Ruminococcus - Sporobacter - Subdoligranulum

Family Syntrophomonadaceae
Dethiobacter - Fervidicola - Pelospora - Syntrophomonas - Syntrophospora - Syntrophothermus - Thermohydrogenium - Thermosyntropha

Unclassified Clostridiales Acetoanaerobium - Acidaminobacter - Anaerobranca - Anaerococcus - Anaerovirgula - Anaerovorax - Blautia - Carboxydocella - Dethiosulfatibacter - Finegoldia - Flavonifractor - Fusibacter - Gallicola - Guggenheimella - Helcococcus - Howardella - Mogibacterium - Murdochiella - Natranaerovirga - Parvimonas - Peptoniphilus - Proteiniborus - Proteocatella - Pseudoflavonifractor - Sedimentibacter - Soehngenia - Sporanaerobacter - Sulfobacillus - Symbiobacterium - Thermaerobacter - Tissierella

Order Halanaerobiales

Family Halanaerobiaceae
Halanaerobium - Halarsenatibacter - Halocella - Haloincola - Halothermothrix

Family Halobacteroidaceae
Acetohalobium - Fuchsiella - Halanaerobacter - Halanaerobaculum - Halobacteroides - Halonatronum - Natroniella - Orenia - Selenihalanaerobacter - Sporohalobacter

Order Natranaerobiales

Family Natranaerobiaceae
Natranaerobius - Natronovirga

Order Thermoanaerobacterales

Family Thermoanaerobacteraceae
Acetogenium - Ammonifex - Brockia - Caldanaerobacter - Caldanaerobius - Caloribacterium - Carboxydibrachium - Carboxydothermus - Desulfovirgula - Gelria - Moorella - Tepidanaerobacter - Thermacetogenium - Thermanaeromonas - Thermoanaerobacter - Thermoanaerobium - Thermobacteroides

Family Thermodesulfobiaceae
Coprothermobacter - Thermodesulfobium

Unclassified Thermoanaerobacterales Caldanaerovirga - Caldicellulosiruptor - Mahella - Syntrophaceticus - Thermoanaerobacterium - Thermosediminibacter - Thermovenabulum - Thermovorax

Class Erysipelotrichia

Order Erysipelotrichales

Family Erysipelotrichaceae
Allobaculum - Bulleidia - Catenibacterium - Coprobacillus - Eggerthia - Erysipelothrix - Holdemania - Kandleria - Solobacterium - Turicibacter

Class Mollicutes: see Phylum "Tenericutes"

Class Negativicutes

Order Selenomonadales

Family Acidaminococcaceae
Acidaminococcus - Phascolarctobacterium - Succiniclasticum - Succinispira

Family Veillonellaceae
Acetonema - Allisonella - Anaeroarcus - Anaeroglobus - Anaeromusa - Anaerosinus - Anaerovibrio - Centipeda - Dendrosporobacter - Dialister - Megamonas - Megasphaera - Mitsuokella - Negativicoccus - Pectinatus - Pelosinus - Propionispira - Propionispora - Quinella - Schwartzia - Selenomonas - Sporolituus - Sporomusa - Sporotalea - Thermosinus - Veillonella - Zymophilus

Class Thermolithobacteria

Order Thermolithobacterales

Family Thermolithobacteraceae
Thermolithobacter

 

Phylum "Fusobacteria"

Class Fusobacteriia

Order Fusobacteriales

Family Fusobacteriaceae
Cetobacterium - Fusobacterium - Ilyobacter - Propionigenium - Psychrilyobacter

Family Leptotrichiaceae

Leptotrichia - Sebaldella - Sneathia - Streptobacillus

 

Phylum "Gemmatimonadetes"

Class Gemmatimonadetes

Order Gemmatimonadales

Family Gemmatimonadaceae
Gemmatimonas

 

Phylum "Lentisphaerae"

Class Lentisphaeria

Order Lentisphaerales

Family Lentisphaeraceae
Lentisphaera

Order Victivallales

Family Victivallaceae
Victivallis

Class Oligosphaeria

Order Oligosphaerales

Family Oligosphaeraceae
Oligosphaera

Phylum "Nitrospira" or "Nitrospirae"

Class "Nitrospira"

Order "Nitrospirales"

Family "Nitrospiraceae"
Leptospirillum - Nitrospira - Thermodesulfovibrio

 

Phylum "Planctomycetes" or "Planctobacteria"

Class "Planctomycetacia" or Planctomycea

Order Planctomycetales

Family Planctomycetaceae
Aquisphaera - Blastopirellula - Gemmata - Isosphaera - Pirellula - Planctomyces - Rhodopirellula - Schlesneria - Singulisphaera - Telmatocola - Zavarzinella

Class Phycisphaerae

Order Phycisphaerales

Family Phycisphaeraceae
Phycisphaera

 

Phylum "Proteobacteria"

Class Alphaproteobacteria

Order Caulobacterales

Family Caulobacteraceae
Asticcacaulis - Brevundimonas - Caulobacter - Phenylobacterium

Family Hyphomonadaceae
Algimonas - Glycocaulis - Hellea - Henriciella - Hirschia - Hyphomonas - Litorimonas - Maribaculum - Maricaulis - Marinicauda - Oceanicaulis - Ponticaulis - Robiginitomaculum - Woodsholea

Order Kiloniellales

Family Kiloniellaceae
Kiloniella

Order Kordiimonadales

Family "Kordiimonadaceae"
Kordiimonas

Order Magnetococcales

Family Magnetococcaceae
Magnetococcus

Order "Parvularculales"

Family "Parvularculaceae"
Parvularcula

Order Rhizobiales

Family "Aurantimonadaceae"
Aurantimonas - Aureimonas - Fulvimarina - Martelella

Family Bartonellaceae
Bartonella - Grahamella - Rochalimaea

Family Beijerinckiaceae
Beijerinckia - Camelimonas - Chelatococcus - Methylocapsa - Methylocella - Methyloferula - Methylorosula - Methylovirgula

Family Bradyrhizobiaceae
Afipia - Agromonas - Balneimonas - Blastobacter - Bosea - Bradyrhizobium - Nitrobacter - Oligotropha - Rhodoblastus - Rhodopseudomonas - Salinarimonas - Tardiphaga

Family Brucellaceae
Brucella - Crabtreella - Daeguia - Mycoplana - Ochrobactrum - Paenochrobactrum - Pseudochrobactrum

Family Cohaesibacteraceae
Cohaesibacter

Family Hyphomicrobiaceae
Ancalomicrobium - Angulomicrobium - Aquabacter - Blastochloris - Cucumibacter - Devosia - Dichotomicrobium - Filomicrobium - Gemmiger - Hyphomicrobium - Maritalea - Methylorhabdus - Pedomicrobium - Pelagibacterium - Prosthecomicrobium - Rhodomicrobium - Rhodoplanes - Seliberia - Zhangella

Family Methylobacteriaceae
Meganema - Methylobacterium - Microvirga - Protomonas

Family Methylocystaceae
Albibacter - Hansschlegelia - Methylocystis - Methylopila - Methylosinus - Pleomorphomonas - Terasakiella

Family Phyllobacteriaceae
Aminobacter - Aquamicrobium - Chelativorans - Defluvibacter - Hoeflea - Mesorhizobium - Nitratireductor - Phyllobacterium - Pseudahrensia - Pseudaminobacter - Thermovum

Family Rhizobiaceae
Agrobacterium - Allorhizobium - Carbophilus - Chelatobacter - Ensifer - Kaistia - Rhizobium - Shinella - Sinorhizobium

Family Rhodobiaceae
Afifella - Anderseniella - Lutibaculum - Parvibaculum - Rhodobium - Rhodoligotrophos - Roseospirillum - Tepidamorphus

Family Xanthobacteraceae
Ancylobacter - Azorhizobium - Labrys - Pseudolabrys - Pseudoxanthobacter - Starkeya - Xanthobacter

Unclassified Rhizobiales Amorphus - Bauldia - Vasilyevaea

Order Rhodobacterales 

Family Rhodobacteraceae
Actibacterium - Agaricicola - Ahrensia - Albimonas - Albidovulum - Amaricoccus - Antarctobacter - Catellibacterium - Celeribacter - Citreicella - Citreimonas - Defluviimonas - Dinoroseobacter - Donghicola - Epibacterium - Falsirhodobacter - Gaetbulicola - Gemmobacter - Haematobacter - Hasllibacter - Huaishuia - Hwanghaeicola - Jannaschia - Jhaorihella - Ketogulonicigenium - Labrenzia - Leisingera - Lentibacter - Litoreibacter - Litorimicrobium - Litorisediminicola - Loktanella - Lutimaribacter - Mameliella - Maribius - Marinovum - Maritimibacter - Marivita - Methylarcula - Nautella - Nereida - Nesiotobacter - Oceanibulbus - Oceanicella - Oceanicola - Octadecabacter - Pacificibacter - Palleronia - Pannonibacter - Paracoccus - Pararhodobacter - Pelagibaca - Pelagicola - Pelagimonas - Phaeobacter - Planktotalea - Pleomorphobacterium - Pontibaca - Ponticoccus - Poseidonocella - Primorskyibacter - Profundibacterium - Pseudorhodobacter - Pseudoruegeria - Pseudovibrio - Rhodobaca - Rhodobacter - Rhodothalassium - Rhodovulum - Roseibaca - Roseibacterium - Roseibium - Roseicitreum - Roseicyclus - Roseinatronobacter - Roseisalinus - Roseivivax - Roseobacter - Roseovarius - Rubellimicrobium - Rubribacterium - Rubrimonas - Ruegeria - Sagittula - Salinihabitans - Salipiger - Sediminimonas - Seohaeicola - Shimia - Silicibacter - Staleya - Stappia - Sulfitobacter - Tateyamaria - Thalassobacter - Thalassobius - Thalassococcus - Thioclava - Thiosphaera - Tranquillimonas - Tropicibacter - Tropicimonas - Vadicella - Wenxinia - Yangia 

Order Rhodospirillales

Family Acetobacteraceae
Acetobacter - Acidicaldus - Acidiphilium - Acidisoma - Acidisphaera - Acidocella - Acidomonas - Ameyamaea - Asaia - Belnapia - Craurococcus - Endobacter - Gluconacetobacter - Gluconobacter - Granulibacter - Humitalea - Komagataeibacter - Kozakia - Muricoccus - Neoasaia - Neokomagataea - Paracraurococcus - Rhodopila - Rhodovarius - Roseococcus - Roseomonas - Rubritepida - Saccharibacter - Stella - Swaminathania - Tanticharoenia - Teichococcus - Zavarzinia

Family Rhodospirillaceae
Azospirillum - Caenispirillum - Conglomeromonas - Constrictibacter - Defluviicoccus - Desertibacter - Dongia - Elstera - Ferrovibrio - Fodinicurvata - Inquilinus - Insolitispirillum - Limimonas - Magnetospira - Magnetospirillum - Magnetovibrio - Marispirillum - Nisaea - Novispirillum - Oceanibaculum - Pelagibius - Phaeospirillum - Phaeovibrio - Rhodocista - Rhodospira - Rhodospirillum - Rhodovibrio - Roseospira - Skermanella - Telmatospirillum - Thalassobaculum - Thalassospira - Tistlia - Tistrella

Unclassified Rhodospirillales Elioraea - Reyranella

Order Rickettsiales

Family Anaplasmataceae
Aegyptianella - Anaplasma - Cowdria - Ehrlichia - Neorickettsia - Wolbachia

Family Holosporaceae
Holospora

Family Rickettsiaceae
Orientia - Rickettsia

Unclassified Rickettsiales Lyticum - Pseudocaedibacter - Symbiotes - Tectibacter

Order Sneathiellales

Family Sneathiellaceae
Oceanibacterium - Sneathiella

Order Sphingomonadales

Family Erythrobacteraceae
Altererythrobacter - Croceicoccus - Erythrobacter - Erythromicrobium - Porphyrobacter

Family Sphingomonadaceae
Blastomonas - Erythromonas - Novosphingobium - Parasphingopyxis - Rhizomonas (rejected name) - Sandaracinobacter - Sandarakinorhabdus - Sphingobium - Sphingomicrobium - Sphingomonas - Sphingopyxis - Sphingorhabdus - Sphingosinicella - Stakelama - Zymomonas

Unclassified Alphaproteobacteria Breoghania - Eilatimonas - Geminicoccus - Rhizomicrobium

Class Betaproteobacteria

Order Burkholderiales

Family Alcaligenaceae
Achromobacter - Advenella - Alcaligenes - Azohydromonas - Bordetella - Brackiella - Candidimonas - Castellaniella - Derxia - Kerstersia - Oligella - Paenalcaligenes - Paralcaligenes - Parapusillimonas - Pelistega - Pigmentiphaga - Pusillimonas - Taylorella - Tetrathiobacter

Family Burkholderiaceae
Burkholderia - Chitinimonas - Cupriavidus - Lautropia - Limnobacter - Pandoraea - Paucimonas - Polynucleobacter - Ralstonia - Thermothrix - Wautersia

Family Comamonadaceae
Acidovorax - Albidiferax - Alicycliphilus - Brachymonas - Caenimonas - Caenibacterium - Caldimonas - Comamonas - Curvibacter - Delftia - Diaphorobacter - Extensimonas - Giesbergeria - Hydrogenophaga - Hylemonella - Kinneretia - Lampropedia - Limnohabitans - Macromonas - Malikia - Ottowia - Pelomonas - Polaromonas - Pseudacidovorax - Pseudorhodoferax - Ramlibacter - Rhodoferax - Roseateles - Schlegelella - Simplicispira - Tepidicella - Variovorax - Verminephrobacter - Xenophilus

Family Oxalobacteraceae
Collimonas - Duganella - Glaciimonas - Herbaspirillum - Herminiimonas - Janthinobacterium - Massilia - Naxibacter - Oxalicibacterium - Oxalobacter - Pseudoduganella - Telluria - Undibacterium

Family Sutterellaceae
Parasutterella - Sutterella

Unclassified Burkholderiales Aquabacterium - Aquincola - Ideonella - Inhella - Leptothrix - Methylibium - Mitsuaria - Paucibacter - Piscinibacter - Rivibacter - Rubrivivax - Sphaerotilus - Tepidimonas - Thiobacter - Thiomonas - Xylophilus

Order Hydrogenophilales

Family Hydrogenophilaceae
Hydrogenophilus - Petrobacter - Sulfuricella - Tepidiphilus - Thiobacillus

Order Methylophilales

Family Methylophilaceae
Methylobacillus - Methylophilus - Methylotenera - Methylovorus

Order Neisseriales

Family Neisseriaceae
Alysiella - Amantichitinum - Andreprevotia - Aquaspirillum - Aquitalea - Bergeriella - Chitinibacter - Chitinilyticum - Chitiniphilus - Chromobacterium - Conchiformibius - Deefgea - Eikenella - Formivibrio - Gulbenkiania - Iodobacter - Jeongeupia - Kingella - Laribacter - Leeia - Microvirgula - Morococcus - Neisseria - Paludibacterium - Prolinoborus - Pseudogulbenkiania - Silvimonas - Simonsiella - Snodgrassella - Stenoxybacter - Uruburuella - Vitreoscilla - Vogesella

Order Nitrosomonadales

Family Gallionellaceae
Gallionella

Family Nitrosomonadaceae
Nitrosolobus - Nitrosomonas - Nitrosospira

Family Spirillaceae
Spirillum

Order "Procabacteriales"

Family "Procabacteriaceae"
"Procabacter"

Order Rhodocyclales

Family Rhodocyclaceae
Azoarcus - Azonexus - Azospira - Azovibrio - Dechloromonas - Dechlorosoma - Denitratisoma - Ferribacterium - Georgfuchsia - Methyloversatilis - Propionibacter - Propionivibrio - Quatrionicoccus - Rhodocyclus - Sterolibacterium - Sulfuritalea - Thauera - Uliginosibacterium - Zoogloea

Unclassified Betaproteobacteria Chitinivorax

Class Deltaproteobacteria or Deltabacteria

Order Bdellovibrionales

Family Bacteriovoracaceae
Bacteriolyticum (illegitimate genus) - Bacteriovorax- Peredibacter

Family Bdellovibrionaceae
Bdellovibrio - Micavibrio - Vampirovibrio

Family Peredibacteraceae (illegitimate)
See Bacteriovoracaceae

Order Desulfarculales

Family Desulfarculaceae
Desulfarculus

Order Desulfobacterales

Family Desulfobacteraceae
Desulfatibacillum - Desulfatiferula - Desulfatirhabdium - Desulfatitalea - Desulfobacter - Desulfobacterium - Desulfobacula - Desulfobotulus - Desulfocella - Desulfococcus - Desulfoconvexum - Desulfofaba - Desulfofrigus - Desulfoluna - Desulfomusa - Desulfonatronobacter - Desulfonema - Desulforegula - Desulfosalsimonas - Desulfosarcina - Desulfospira - Desulfotignum

Family Desulfobulbaceae
Desulfobulbus - Desulfocapsa - Desulfofustis - Desulfopila - Desulforhopalus - Desulfotalea - Desulfurivibrio

Family Nitrospinaceae
Nitrospina

Order Desulfovibrionales

Family Desulfohalobiaceae
Desulfohalobium - Desulfonatronospira - Desulfonatronovibrio - Desulfonauticus - Desulfothermus - Desulfovermiculus

Family Desulfomicrobiaceae
Desulfomicrobium

Family Desulfonatronaceae
Desulfonatronum

Family Desulfovibrionaceae
Bilophila - Desulfobaculum - Desulfocurvus - Desulfomonas - Desulfovibrio - Lawsonia

Order Desulfurellales

Family Desulfurellaceae
Desulfurella - Hippea

Order Desulfuromonadales

Family Desulfuromonadaceae
Desulfuromonas - Desulfuromusa - Malonomonas - Pelobacter

Family Geobacteraceae
Geoalkalibacter - Geobacter - Geopsychrobacter - Geothermobacter - Trichlorobacter

Order Myxococcales

Suborder Cystobacterineae

Family Cystobacteraceae
Anaeromyxobacter - Archangium - Cystobacter - Hyalangium - Melittangium - Stigmatella

Family Myxococcaceae
Angiococcus - Corallococcus - Myxococcus - Pyxidicoccus

Suborder Nannocystineae

Family "Haliangiaceae"
Haliangium

Family Kofleriaceae
Kofleria

Family Nannocystaceae
Enhygromyxa - Nannocystis - Plesiocystis - Pseudenhygromyxa

Suborder Sorangiineae

Family Phaselicystidaceae
Phaselicystis

Family Polyangiaceae
Byssovorax - Chondromyces - Jahnella - Polyangium - Sorangium

Family Sandaracinaceae
Sandaracinus

Order Syntrophobacterales

Family Syntrophaceae
Desulfobacca - Desulfomonile - Smithella - Syntrophus

Family Syntrophobacteraceae
Desulfacinum - Desulfoglaeba - Desulforhabdus - Desulfosoma - Desulfovirga - Syntrophobacter - Thermodesulforhabdus

Unnamed Order

Family Syntrophorhabdaceae
Syntrophorhabdus

Unclassified Deltaproteobacteria Deferrisoma - Dissulfuribacter

Class Epsilonproteobacteria

Order Campylobacterales

Family Campylobacteraceae
Arcobacter - Campylobacter - Dehalospirillum - Sulfurospirillum

Family Helicobacteraceae
Helicobacter - Sulfuricurvum - Sulfurimonas - Sulfurovum - Thiovulum - Wolinella

Family "Hydrogenimonaceae"
Hydrogenimonas

Order Nautiliales

Family Nautiliaceae
Caminibacter - Lebetimonas - Nautilia - Nitratifractor - Nitratiruptor - Thioreductor

Class Gammaproteobacteria

Order Acidithiobacillales

Family Acidithiobacillaceae
Acidithiobacillus

Family Thermithiobacillaceae
Thermithiobacillus

Order Aeromonadales

Family Aeromonadaceae
Aeromonas - Oceanimonas - Oceanisphaera - Tolumonas - Zobellella

Family Succinivibrionaceae
Anaerobiospirillum - Ruminobacter - Succinatimonas - Succinimonas - Succinivibrio

Order Alteromonadales

Family Alteromonadaceae
Aestuariibacter - Agarivorans - Aliagarivorans - Alishewanella - Alteromonas - Bowmanella - Catenovulum - Glaciecola - Haliea - Marinimicrobium - Marinobacter - Marinobacterium - Melitea - Microbulbifer - Saccharophagus - Salinimonas

Family Celerinatantimonadaceae
Celerinatantimonas

Family Colwelliaceae
Colwellia - Thalassomonas

Family Ferrimonadaceae
Ferrimonas - Paraferrimonas

Family Idiomarinaceae
Aliidiomarina - Idiomarina - Pseudidiomarina

Family Moritellaceae
Moritella- Paramoritella

Family Pseudoalteromonadaceae
Algicola - Pseudoalteromonas - Psychrosphaera

Family Psychromonadaceae
Psychromonas

Family Shewanellaceae
Shewanella

Unclassified Alteromonadales Eionea - Gilvimarinus - Maricurvus - Neiella - Pseudoteredinibacter - Teredinibacter

Order Cardiobacteriales

Family Cardiobacteriaceae
Cardiobacterium - Dichelobacter - Suttonella

Order Chromatiales

Family Chromatiaceae
Allochromatium - Amoebobacter - Chromatium - Halochromatium - Isochromatium - Lamprobacter - Lamprocystis - Marichromatium - Nitrosococcus - Pfennigia - Phaeochromatium - Rhabdochromatium - Rheinheimera - Thermochromatium - Thioalkalicoccus - Thiobaca - Thiocapsa - Thiococcus - Thiocystis - Thiodictyon - Thioflavicoccus - Thiohalocapsa - Thiolamprovum - Thiopedia - Thiophaeococcus - Thiorhodococcus - Thiorhodovibrio - Thiospirillum

Family Ectothiorhodospiraceae
Acidiferrobacter - Alkalilimnicola - Alkalispirillum - Aquisalimonas - Arhodomonas - Ectothiorhodosinus - Ectothiorhodospira - Halorhodospira - Natronocella - Nitrococcus - Thioalbus - Thioalkalivibrio - Thiohalospira - Thiorhodospira

Family Granulosicoccaceae
Granulosicoccus

Family Halothiobacillaceae
Halothiobacillus - Thioalkalibacter - Thiofaba - Thiovirga

Family Thioalkalispiraceae
Thioalkalispira - Thiohalophilus - Thioprofundum

Order "Enterobacteriales"

Family Enterobacteriaceae
Arsenophonus - Biostraticola - Brenneria - Buchnera - Budvicia - Buttiauxella - Calymmatobacterium - Cedecea - Citrobacter - Cosenzaea - Cronobacter - Dickeya - Edwardsiella - Enterobacter - Erwinia - Escherichia - Ewingella - Gibbsiella - Hafnia - Klebsiella - Kluyvera - Leclercia - Leminorella - Levinea - Lonsdalea - Mangrovibacter - Moellerella - Morganella - Obesumbacterium - Pantoea - Pectobacterium - Phaseolibacter - Photorhabdus - Plesiomonas - Pragia - Proteus - Providencia - Rahnella - Raoultella - Saccharobacter - Salmonella - Samsonia - Serratia - Shigella - Shimwellia - Sodalis - Tatumella - Thorsellia - Trabulsiella - Wigglesworthia - Xenorhabdus - Yersinia - Yokenella

Order Legionellales

Family Coxiellaceae
Aquicella - Coxiella - Diplorickettsia

Family Legionellaceae
Fluoribacter - Legionella - Sarcobium - Tatlockia

Unclassified Legionellales Rickettsiella

Order Methylococcales

Family Crenotrichaceae
Crenothrix

Family Methylococcaceae
Methylobacter - Methylocaldum - Methylococcus - Methylogaea - Methylohalobius - Methylomarinum - Methylomicrobium - Methylomonas - Methylosarcina - Methylosoma - Methylosphaera - Methylothermus - Methylovulum

Order Oceanospirillales

Family Alcanivoracaceae
Alcanivorax - Fundibacter - Kangiella

Family Hahellaceae
Endozoicomonas - Hahella - Halospina - Kistimonas - Zooshikella

Family Halomonadaceae
Aidingimonas - Carnimonas - Chromohalobacter - Cobetia - Deleya - Halomonas - Halotalea - Halovibrio - Kushneria - Modicisalibacter - Salinicola - Volcaniella - Zymobacter

Family Litoricolaceae
Litoricola

Family Oceanospirillaceae
Amphritea - Balneatrix - Bermanella - Corallomonas - Marinomonas - Marinospirillum - Neptuniibacter - Neptunomonas - Nitrincola - Oceaniserpentilla - Oceanobacter - Oceanospirillum - Oleibacter - Oleispira - Pseudospirillum - Reinekea - Sinobacterium - Thalassolituus

Family Oleiphilaceae
Oleiphilus

Family "Saccharospirillaceae"
Saccharospirillum

Unclassified Oceanospirillales Salicola - Spongiispira

Order Orbales

Family Orbaceae
Gilliamella - Orbus

Order Pasteurellales

Family Pasteurellaceae
Actinobacillus - Aggregatibacter - Avibacterium - Basfia - Bibersteinia - Bisgaardia - Chelonobacter - Gallibacterium - Haemophilus - Histophilus - Lonepinella - Mannheimia - Necropsobacter - Nicoletella - Otariodibacter - Pasteurella - Phocoenobacter - Volucribacter

Order Pseudomonadales

Family Moraxellaceae
Acinetobacter - Alkanindiges - Branhamella - Enhydrobacter - Moraxella - Paraperlucidibaca - Perlucidibaca - Psychrobacter

Family Pseudomonadaceae
Azomonas - Azomonotrichon - Azorhizophilus - Azotobacter - Cellvibrio - Chryseomonas - Flavimonas - Mesophilobacter - Pseudomonas - Rhizobacter - Rugamonas - Serpens

Unclassified Pseudomonadales Dasania

Order "Salinisphaerales"

Family "Salinisphaeraceae"
Salinisphaera

Order Thiotrichales

Family Francisellaceae
Francisella

Family Piscirickettsiaceae
Cycloclasticus - Galenea - Hydrogenovibrio - Methylophaga - Piscirickettsia - Sulfurivirga - Thioalkalimicrobium - Thiomicrospira

Family Thiotrichaceae
Achromatium - Beggiatoa - Cocleimonas - Leucothrix - Thiobacterium - Thiomargarita - Thioploca - Thiospira - Thiothrix

Unclassified Thiotrichales Caedibacter - Fangia

Order "Vibrionales"

Family Vibrionaceae
Aliivibrio - Allomonas - Beneckea - Catenococcus - Echinimonas - Enterovibrio - Grimontia - Listonella - Lucibacterium - Photobacterium - Salinivibrio - Vibrio

Order Xanthomonadales

Family Algiphilaceae
Algiphilus

Family Nevskiaceae
Hydrocarboniphaga - Nevskia

Family Sinobacteraceae
See ¤ Solimonadaceae.
Sheu et al. 2011 propose to transfer the type species of the type genus of the family ¤ Sinobacteraceae in the genus ¤ Solimonas. According to Rule 37a, bacteriologists adhering to this proposal must change the name ¤ Sinobacter to ¤ Solimonas.
With the now defunct name Sinobacter there is now an inconsistency in the nomenclature with the name Sinobacteraceae. Therefore, Losey et al. 2013 propose the name ¤ Solimonadaceae fam. nov. to include members of the genera ¤ Solimonas and ¤ Fontimonas.

Family Solimonadaceae
Fontimonas - Sinobacter - Solimonas

Family Xanthomonadaceae
Aquimonas - Arenimonas - Aspromonas - Dokdonella - Dyella - Frateuria - Fulvimonas - Ignatzschineria - Luteibacter - Luteimonas - Lysobacter - Metallibacterium - Panacagrimonas - Pseudofulvimonas - Pseudoxanthomonas - Rhodanobacter - Rudaea - Silanimonas - Stenotrophomonas - Thermomonas - Wohlfahrtiimonas - Xanthomonas - Xylella

Unclassified Xanthomonadales Alkanibacter - Singularimonas - Sinobacter - Steroidobacter

Unclassified Gammaproteobacteria Alkalimonas - Arenicella - Chromatocurvus - Congregibacter - Gallaecimonas - Halioglobus - Marinicella - Methylohalomonas - Methylonatrum - Plasticicumulans - Porticoccus - Sedimenticola - Simiduia - Solimonas - Spongiibacter - Thiohalobacter - Thiohalomonas - Thiohalorhabdus - Umboniibacter - Zhongshania

Class "Zetaproteobacteria"

Order "Mariprofundales"

Family "Mariprofundaceae"
Mariprofundus

 

Phylum "Spirochaetes" or "Spirochaetae"

Class Spirochaetes

Order Spirochaetales

Family Brachyspiraceae
Brachyspira - Serpulina

Family Brevinemataceae
Brevinema

Family Leptospiraceae
Leptonema - Leptospira - Turneriella

Family Spirochaetaceae
Borrelia - Clevelandina - Cristispira - Diplocalyx - Hollandina - Pillotina - Sphaerochaeta - Spirochaeta - Treponema

Unclassified Spirochaetales Exilispira

 

Phylum "Synergistetes"

Class Synergistia

Order Synergistales

Family Synergistaceae
Aminiphilus - Aminobacterium - Aminomonas - Anaerobaculum - Cloacibacillus - Dethiosulfovibrio - Fretibacterium - Jonquetella - Pyramidobacter - Synergistes - Thermanaerovibrio - Thermovirga

 

Phylum "Tenericutes"

Class Mollicutes (In the next edition of the Bergey's Manual of Systematic Bacteriology, the class Mollicutes will be excluded from the phylum "Firmicutes" and classified in the phylum "Tenericutes" - Reference: K.H. Schleifer and W. Ludwig, personal communication)

Order Acholeplasmatales

Family Acholeplasmataceae
Acholeplasma

Order Anaeroplasmatales

Family Anaeroplasmataceae
Anaeroplasma - Asteroleplasma

Order Entomoplasmatales

Family Entomoplasmataceae
Entomoplasma - Mesoplasma

Family Spiroplasmataceae
Spiroplasma

Order Haloplasmatales

Family Haloplasmataceae
Haloplasma

Order Mycoplasmatales

Family Mycoplasmataceae
Eperythrozoon - Haemobartonella - Mycoplasma - Ureaplasma

 

Phylum "Thermodesulfobacteria"

Class Thermodesulfobacteria

Order Thermodesulfobacteriales

Family Thermodesulfobacteriaceae
Caldimicrobium - Thermodesulfatator - Thermodesulfobacterium - Thermosulfurimonas

 

Phylum "Thermomicrobia"

See Phylum "Chloroflexi"

 

Phylum "Thermotogae"

Class Thermotogae

Order Thermotogales

Family Thermotogaceae
Defluviitoga - Fervidobacterium - Geotoga - Kosmotoga - Marinitoga - Mesotoga - Oceanotoga - Petrotoga - Thermococcoides - Thermosipho - Thermotoga

 

Phylum "Verrucomicrobia"

Class Verrucomicrobiae

Order Verrucomicrobiales

Family Akkermansiaceae
Akkermansia

Family Rubritaleaceae
Rubritalea

Family Verrucomicrobiaceae
 Haloferula - Luteolibacter - Persicirhabdus - Prosthecobacter - Roseibacillus - Roseimicrobium - Verrucomicrobium

Class Opitutae

Order Opitutales

Family Opitutaceae
Alterococcus - Opitutus

Order Puniceicoccales

Family Puniceicoccaceae
Cerasicoccus - Coraliomargarita - Pelagicoccus - Puniceicoccus

   

 

Domain "Archaea"

Phyla

"Crenarchaeota" - "Euryarchaeota" - "Korarchaeota" - "Nanoarchaeota" - "Thaumarchaeota"

 

Phylum "Crenarchaeota"

Class Thermoprotei or Crenarchaeota

Order Acidilobales

Family Acidilobaceae
Acidilobus

Family Caldisphaeraceae
Caldisphaera

Order Desulfurococcales

Family Desulfurococcaceae
Aeropyrum - Desulfurococcus - Ignicoccus - Ignisphaera - Staphylothermus - Stetteria - Sulfophobococcus - Thermodiscus - Thermosphaera

Family Pyrodictiaceae
Hyperthermus - Pyrodictium - Pyrolobus

Order Fervidicoccales

Family Fervidicoccaceae
Fervidicoccus

Order Sulfolobales

Family Sulfolobaceae
Acidianus - Desulfurolobus - Metallosphaera - Stygiolobus - Sulfolobus - Sulfurisphaera - Sulfurococcus

Order Thermoproteales

Family Thermofilaceae
Thermofilum

Family Thermoproteaceae
Caldivirga - Pyrobaculum - Thermocladium - Thermoproteus - Vulcanisaeta

 

Phylum "Euryarchaeota"

Class Archaeoglobi

Order Archaeoglobales

Family Archaeoglobaceae
Archaeoglobus - Ferroglobus - Geoglobus

Class Halobacteria or Halomebacteria

Order Halobacteriales

Family Halobacteriaceae
Haladaptatus - Halalkalicoccus - Halarchaeum - Haloarchaeobius - Haloarcula - Halobacterium - Halobaculum - Halobellus - Halobiforma - Halococcus - Haloferax - Halogeometricum - Halogranum - Halolamina - Halomarina - Halomicrobium - Halonotius - Halopelagius - Halopenitus - Halopiger - Haloplanus - Haloquadratum - Halorhabdus - Halorientalis - Halorubrum - Halosarcina - Halosimplex - Halostagnicola - Haloterrigena - Halovenus - Halovivax - Natrialba - Natrinema - Natronoarchaeum - Natronobacterium - Natronococcus - Natronolimnobius - Natronomonas - Natronorubrum - Salarchaeum

Class Methanobacteria

Order Methanobacteriales

Family Methanobacteriaceae
Methanobacterium - Methanobrevibacter - Methanosphaera - Methanothermobacter

Family Methanothermaceae
Methanothermus

Class Methanococci or Methanothermea

Order Methanococcales

Family Methanocaldococcaceae
Methanocaldococcus - Methanotorris

Family Methanococcaceae
Methanococcus - Methanothermococcus

Class "Methanomicrobia"

Order Methanocellales

Family Methanocellaceae
Methanocella

Order Methanomicrobiales

Family Methanocorpusculaceae
Methanocorpusculum

Family Methanomicrobiaceae
Methanoculleus - Methanofollis - Methanogenium - Methanolacinia - Methanomicrobium - Methanoplanus

Family Methanoregulaceae
Methanolinea - Methanoregula - Methanosphaerula

Family Methanospirillaceae
Methanospirillum

Unclassified Methanomicrobiales Methanocalculus

Order Methanosarcinales

Family Methanosaetaceae (illegitimate name)
Methanosaeta (illegitimate name) - Methanothrix

Family Methanosarcinaceae
Halomethanococcus - Methanimicrococcus - Methanococcoides - Methanohalobium - Methanohalophilus - Methanolobus - Methanomethylovorans - Methanosalsum - Methanosarcina

Family Methermicoccaceae
Methermicoccus

Unclassified "Methanomicrobia" Methanomassiliicoccus

 

Class Methanopyri

Order Methanopyrales

Family Methanopyraceae
Methanopyrus

Class Thermococci or Protoarchaea

Order Thermococcales

Family Thermococcaceae
Palaeococcus - Pyrococcus - Thermococcus

Class Thermoplasmata

Order Thermoplasmatales

Family Ferroplasmaceae
Acidiplasma - Ferroplasma

Family Picrophilaceae
Picrophilus

Family Thermoplasmataceae
Thermoplasma

Unclassified Thermoplasmatales
Thermogymnomonas

 

Phylum "Korarchaeota"

"Candidatus Korarchaeum"

 

Phylum "Nanoarchaeota"

"Nanoarchaeum"

 

Phylum "Thaumarchaeota"

Order Cenarchaeales

Family "Cenarchaeaceae"
"Cenarchaeum"
 

See also the file Classification of prokaryotes (bacteria): Introduction

 

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