This article lists the orders of the Bacteria . The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[ 1] National Center for Biotechnology Information (NCBI)[ 2] The All-Species Living Tree Project .[ 3]
National Center for Biotechnology Information (NCBI) taxonomy was initially used to decorate the genome tree via tax2tree. The 16S rRNA-based Greengenes taxonomy is used to supplement the taxonomy particularly in regions of the tree with no cultured representatives. List of Prokaryotic names with Standing in Nomenclature (LPSN) is used as the primary taxonomic authority for establishing naming priorities. Taxonomic ranks are normalised using phylorank and the taxonomy manually curated to remove polyphyletic groups.[ 4] [ 5] [ 6] [ 7] [ 8]
Cladogram was taken from GTDB release 09-RS220 (24 April 2024).[ 9] [ 10] [ 11]
Class "Bathosphaeria" Mehrshad et al. 2018
Class "Martimicrobia" Williams et al. 2024
Class ?"Poriflexia " Kogawa et al. 2022
Class "Spiritibacteria" Williams et al. 2024
Class "Tarhunnaeia" Williams et al. 2024
Class "Uliximicrobia" Williams et al. 2024
Class "Umbricyclopia" Mehrshad et al. 2018
Class "Dormiibacteria" (sic) Montgomery et al. 2021 (AD3)
Class "Limnocylindria" Mehrshad et al. 2018
Class Ktedobacteria corrig. Cavaletti et al. 2007
Class Dehalococcoidia Löffler et al. 2013
Class "Caldilineia" Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020
Class Chloroflexia Gupta et al. 2013
Class "Sysuimicrobiia" Liu et al. 2024 [CSP1-3]
Class "Heboniibacteriia" corrig. Carlton et al. 2023 (CAIYQO01)
Class "Zipacnadia" Carlton et al. 2023 (UBA5377)
Class Abditibacteriia Tahon et al. 2018 (FBP)
Class HRBIN17
"Candidatus Fervidibacter" Rinke et al. 2013 {HRBIN17: HRBIN17} (OctSpa1-106)
Class UBA5829
"Candidatus Hippobium" Gilroy et al. 2022 {UBA5829: UBA5829}
Class Fimbriimonadia Im et al. 2012
Class Chthonomonadia Oren, Parte & Garrity 2016
Class Armatimonadia Tamaki et al. 2011 (OP10)
Class "Eudoremicrobiia" Paoli et al. 2022
Class "Xenobia" Ji et al. 2021 (UBP9)
Class "Eremiobacteriia" corrig. Ward, Cardona & Holland-Moritz 2019 (WPS2)
Firmicutes incertae sedis [ edit ] Class Desulfitisporia Sorokin & Merkel 2023
Class Fermentithermobacillia Kadnikov et al. 2023
Class Thermolithobacteria Sokolova et al. 2007
Class Limnochordia Watanabe, Kojima & Fukui 2015
Class "Hydrogenisporia" Pallen, Rodriguez-R & Alikhan 2022
Class UBA3575
"Candidatus Acetocimmeria" Smith et al. 2021 {UBA3575: UBA3575}
Class Thermaerobacteria Chuvochina et al. 2024
Class Symbiobacteriia Chuvochina et al. 2024
Class Sulfobacillia Chuvochina et al. 2024
Phylogeny of Desulfotomaculota[ 9] [ 10] [ 11]
Peptococcia
"Dehalobacteriia"
Class Peptococcia Chuvochina et al. 2024
Class "Dehalobacteriia"
Class Desulfitobacteriia Chuvochina et al. 2024
Class "Moorellia"
Class DSM-12270
Class Syntrophomonadia Chuvochina et al. 2024
Class "Carboxydocellia" Pallen, Rodriguez-R & Alikhan 2022
Class Thermincolia Chuvochina et al. 2024
Class "Carboxydothermia" Pallen, Rodriguez-R & Alikhan 2022
Class Desulfotomaculia Chuvochina et al. 2024
Class "Proteinivoracia"
Class "Dethiobacteria" Sorokin & Merkel 2022
"Candidatus Contubernalis" corrig. Zhilina et al. 2005 {SKNC01: SKNC01}
"Dethiobacterales " Sorokin & Merkel 2022
Class Natranaerobiia Chuvochina et al. 2024
Class "Halanaerobiia" Cavalier-Smith 2020
Class Thermosediminibacteria Chuvochina et al. 2024
Class "Thermoanaerobacteria"
Class "Clostridiia " Oren, Parte & Garrity 2016
Clade Cyanoprokaryota [ edit ] Class "Sericytochromatia " Soo et al. 2017
S15B-MN24 ["Sericytochromatia"; "Tanganyikabacteria"]
UBA7694 ["Blackallbacteria"]
Class Vampirovibrionia Chuvochina et al. 2024
Class Gloeobacteria Cavalier-Smith 2002
Class Phycobacteria Cavalier-Smith 2002
Acaryochloridales Miyashita et al. 2003 ex Strunecký & Mareš 2022 ("Thermosynechococcales")?Aegeococcales Strunecký & Mareš 2022
Trichothermofontia Daroch et al. 2023 {B231}Cyanobacteriales Rippka & Cohen-Bazire 1983 (Chamaesiphonales, Chroococcales , Chroococcidiopsidales , Coleofasciculales, Desertifilales, Nostocales , Oscillatoriales , Pleurocapsales , Spirulinales , Stigonematales )?"Eurycoccales "
?Geitlerinematales Strunecký & Mareš 2022
Gloeoemargaritales Moreira et al. 2016 Leptolyngbyales Strunecký & Mareš 2022 "Limnotrichales "
Neosynechococcales Chuvochina et al. 2024 Nodosilineales Strunecký & Mareš 2022 (Phormidesmidales)Oculatellales Strunecký & Mareš 2022 (Elainellales)Prochlorococcaceae Komárek & Strunecky 2020 {"PCC-6307"}Prochlorotrichales Strunecký & Mareš 2022 [PCC-9006]Pseudanabenales Hoffmann, Komárek & Kastovsky 2005 Synechococcales Hoffmann, Komárek & Kastovsky 2005 Thermostichales Komárek & Strunecký 2020 Class Atribacteria Katayama et al. 2021 (OP9)
Atribacterales Katayama et al. 2021 ("Caldatribacteriales")
Class "Phoenicimicrobiia" Jiao et al. 2024 (JS1)
Class "Thermodesulfobiia" Frolov et al. 2022
Class "Thermotogia " Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020
Class "Elulimicrobiia" Rodriguez-R et al. 2020
?"Elulimicrobiales" Rodriguez-R et al. 2020
Phylogeny of Patescibacteria[ 9] [ 10] [ 11]
"Wirthbacteria " (CG2-30-54-11)
"Microgenomates "
"Dojkabacteria "
"Katanobacteria "
"Microgenomatia"
"Woykebacterales"
"Curtissbacterales"
"Daviesbacterales"
"Roizmanbacterales" (UBA1406)
"Gottesmanbacterales" (UBA10105)
"Levybacterales"
GWA2-44-7
"Chazhemtobacteriales"
"Shapirobacterales" (UBA12405)
cluster
"Gracilibacteria"
"Gracilibacteria"
"Abawacabacterales" (RBG-16-42-10)
"Peregrinibacterales" (UBA1369)
"Fallacibacteriales" (DOLZORAL124_38_8; UBA4473)
"Peribacterales"
cluster
"Parcubacteria "
"Doudnabacteria "
"Andersenbacteria "
"Torokbacteria " (GCA-2792135)
ABY1
"Kerfeldbacterales" (SBBC01)
"Jacksonbacterales" (UBA9629)
"Komeilibacterales" (UBA1558)
"Kuenenbacterales" (UBA2196)
"Veblenbacterales"
"Uhrbacterales" (GWA2-46-9)
"Magasanikbacterales"
"Buchananbacterales"
"Falkowbacterales"
"Moisslbacterales" (UBA2591)
"Paceibacteria"
"Moranbacterales"
UBA6257
"Spechtbacterales"
"Terrybacterales"
"Parcunitrobacterales" (GWA2-38-13b)
"Portnoybacterales"
"Paceibacterales"
"Azambacterales" (UBA10092)
"Yanofskybacterales" (2-02-FULL-40-12)
cluster
Class "Wirthbacteria "
Class "Dojkabacteria " (WS6)
Class "Katanobacteria " (WWE3)
Class "Microgenomatia "
Clade GWA2-44-7
"Chazhemtobacteriales" Pallen, Rodriguez-R & Alikhan 2022 [UBA1400]
"Curtissbacterales"
"Daviesbacterales"
"Gottesmanbacterales"
"Levybacterales"
"Roizmanbacterales"
"Shapirobacterales"
"Woykebacterales" (RIF34)
Class "Absconditabacteria "
"Absconditabacterales" (sic)Yakimov et al. 2022 (SR1)
"Candidatus Altimarinus" Rinke et al. 2013 {BD1-5: UBA6164} (GN02)
Class "Gracilibacteria "
"Abawacabacterales" (RIF46)
"Fertabacterales" (DOLZORAL124_38_8; "Fallacibacteriota")
"Peregrinibacterales" (PER)
"Peribacterales" Anantharaman et al. 2016
Class "Berkelbacteria " (ACD58)
Class "Kazanbacteria " (Kazan)
Class "Howlettbacteria " (CPR2)
Class "Saccharimonadia " corrig. Lemos et al. 2019 (TM7)
"Saccharimonadales" corrig. Lemos et al. 2019 ex Chuvochina et al. 2023
Class "Andersenbacteria " (RIF9)
Class "Doudnabacteria " (SM2F11)
Class "Torokbacteria " (GCA-2792135)
Class "ABY1"
?"Brownbacterales"
"Buchananbacterales" (RIF37)
"Falkowbacterales"
"Jacksonbacterales" (RIF38)
"Kerfeldbacterales" (RIF4)
"Komeilibacterales" (RIF6)
"Kuenenbacterales"
"Magasanikbacterales"
"Moisslbacterales" [UBA2591]
"Uhrbacterales"
"Veblenbacterales" (RIF39)
Class "Paceibacteria " Chuvochina et al. 2023
"Azambacterales"
Clade UBA6257
"Giovannonibacterales" (UBA11713)
?"Montesolbacterales"
"Moranbacterales" (OD1-i)
"Niyogibacterales" (RIF11; HO2-45-28)
"Paceibacterales" Chuvochina et al. 2023
"Parcunitrobacterales" Castelle et al. 2017
"Portnoybacterales" (RIF22)
"Ryanbacterales" (RIF10)
"Spechtbacterales" (RIF19)
"Sungbacterales" (RIF17)
"Tagabacterales" (RIF12)
"Terrybacterales" (RIF13)
"Yanofskybacterales" (2-02-FULL-40-12) [ edit ] Class "Muiribacteriia" corrig. Chuvochina et al. 2023
"Muiribacteriales" corrig. Chuvochina et al. 2023 Class "Ozemibacteria " corrig. Kadnikov et al. 2018 (RIF32/ACD39)
"Ozemibacterales" corrig. Kadnikov et al. 2018 Class "Macinerneyibacteriia" corrig. Yadav et al. 2020
"Macinerneyibacteriales" corrig. Yadav et al. 2020 Class "Bipolaricaulia" Chuvochina et al. 2023
"Candidatus Cellulosimonas" Doud et al. 2020 Class "Elusimicrobiia" Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020 (TG1)
Class "Endomicrobiia" Stingl et al. 2018
Clade Spirochaetobacteriobiontes [ edit ] Class "Babeliae" (sic) Yeoh et al. 2016 (TM6)
Phylogeny of Spirochaetota[ 9] [ 10] [ 11]
"Leptospirae"
Leptospiria
"Euspirochaetae"
Class Leptospiria Chuvochina et al. 2024
Class Brevinematia Chuvochina et al. 2024
Class Brachyspiria Chuvochina et al. 2024
Class "Exilispiria" Pallen, Rodriguez-R & Alikhan 2022
Class Spirochaetia Paster 2020
Class "Uabimicrobiia" Lodha, Narvekar & Karodi 2021
Class "Brocadiia" JLodha, Narvekar & Karodi 2021
Class Phycisphaeria Oren, Parte & Garrity 2016
Class Planctomycetia Ward 2020
Phylogeny of Verrucomicrobiota[ 9] [ 10] [ 11]
Kiritimatiellae
Verrucomicrobiia
Class Lentisphaeria Cho et al. 2004
Class Kiritimatiellae Spring et al. 2017
Class Verrucomicrobiia corrig. Hedlund, Gosink & Staley 1998
Class "Saltatorellae" Wiegand et al. 2019
Class "Hinthialibacteria" Williams et al. 2022
"Hinthialibacterales" Williams et al. 2022 (OLB16) Class "Sumerlaeia" Kadnikov et al. 2018
Class "Hydrogenedentia" Chuvochina et al. 2023 (NKB19)
Class "Heilongiia" corrig. Zhang et al. 2022
?"Heilongiales" Zhang et al. 2022 ?"Candidatus Neomarinimicrobium " Rinke et al. 2013 corrig. Oren et al. 2020 (Candidate phylum SAR406; candidate phylum Marine Group A)
Class Fidelibacteria Katayama et al. 2024
Family "Effluvivivacaceae" corrig. Su et al. 2024 (VGIX01) Class "Krumholzibacteriia" corrig. Youssef et al. 2019
Class "Stahliibacteriia " (UBA3073)
Class "Hydrothermia" Chuvochina et al. 2019 ex Chuvochina et al. 2023
"Hydrothermales " Chuvochina et al. 2019 ex Chuvochina et al. 2023 (EM3)
"Caldipriscales" Pallen, Rodriguez-R & Alikhan 2022 [LBFQ01] Class "Cloacimonadia" Williams et al. 2021 ex Chuvochina et al. 2023
"Candidatus Celaenobacter" Williams et al. 2021 {JGIOTU-2: JGIOTU-2}
"Cloacimonadales " Williams et al. 2021 ex Chuvochina et al. 2023 (WWE1) Class "Electryoneia" Williams et al. 2022
Class AABM5-125-24
Class "Tariuqbacteria" Vigneron, Vincent & Lovejoy 2023
Class Calditrichia Kublanov et al. 2022
Class "Cosmopolitia" (sic) Zhang et al. 2023
Class "Zhuqueibacteria" Lian et al. 2024 [KSB1: UBA2214]
Class "Moduliflexia" Sekiguchi et al. 2015 (KSB3)
Class "Methylomirabilia" Chuvochina et al. 2023
Class "Entotheonellia" Chuvochina et al. 2023
Class Nitrospinia Lucker et al. 2022
Class Thermodesulfovibrionia Umezawa et al. 2023
Class Nitrospiria Garrity & Holt 2022
Class "Binatia " Chuvochina et al. 2019 ex Chuvochina et al. 2023
"Binatales " Chuvochina et al. 2019 ex Chuvochina et al. 2023 Class "Lernaellia " Williams et al. 2022 [FEN-1099]
Class "Kuafubacteriia" corrig. Li et al. 2023
Class Myxococcia Waite et al. 2020
Myxococcales Tchan, Pochon & Prévot 1948 [Archangiales; "Angiobacteriales"; "Angiococcales"] (fruiting gliding bacteria)
Class Bradymonadia corrig. Chuvochina et al. 2024
Class Polyangiia corrig. Waite et al. 2020
Class "Zymogeniia" corrig. Murphy et al. 2021
Class "Anaeroferrophilia" corrig. Murphy et al. 2021
Class Desulfuromonadia Waite et al. 2020
Class Desulfomonilia Waite et al. 2020
Class Syntrophia Waite et al. 2020
Class Dissulfuribacteria Waite et al. 2020
Class Thermodesulfobacteriia corrig. Hatchikian, Ollivier & Garcia 2002
Class Desulfobulbia Waite et al. 2020
Class "Desulfofervidia" Waite et al. 2020
Class "Desulfatiglandia" Pallen, Rodriguez-R & Alikhan 2022 [DSM-4660]
Class Desulfovibrionia Waite et al. 2020
Class Desulfobaccia Waite et al. 2020
Class Desulfarculia Waite et al. 2020
Class Syntrophobacteria Waite et al. 2020
Class Desulfobacteria Waite et al. 2020
Phylum Desulfobacterota G [ edit ] Class Syntrophorhabdia Waite et al. 2020
Class "Dadabacteria" (sic) Hug et al. 2016 [CSP1-2]
[ edit ] Class "Acidulodesulfobacteriia" (sic) Pallen, Rodriguez-R & Alikhan 2022 [SZUA-79]
Class Thermosulfidibacteria Cavalier-Smith 2020 ex Chuvochina et al. 2024
Class Desulfurobacteriia Chuvochina et al. 2024
Class Aquificia corrig. Reysenbach 2002
Class "Calescibacteriia" Chuvochina et al. 2023 (EM19)
Phylum Campylobacterota_A [ edit ] Class "Leptospirillia" Chuvochina et al. 2023
Class "Anaeropigmentatia" corrig. Murphy et al. 2021
Class Caulobacteria " Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020
Class "Mariprofundia" Cavalier-Smith 2020 ["Zetaproteobacteria"]
Class Magnetococcia Chuvochina et al. 2024
Class Pseudomonadia " Oren, Parte & Garrity 2016
Phylogeny of "Pseudomonadidae"[ 9] [ 10] [ 11]
"Chromatiae"
"Enterobacteriae"
Subclass "Pseudomonadidae" Cavalier-Smith 2020
Acidiferrobacterales Kojima, Shinohara & Fukui 2015 Acidithiobacillales Garrity, Bell & Lilburn 2005 "Aquicellales " Pallen, Rodriguez-R & Alikhan 2022 [DSM-16500]
Arenicellales Teramoto, Yagyu & Nishijima 2015 Beggiatoales Buchanan 1957 "Berkiellales " Chuvochina et al. 2023
Cardiobacteriales Garrity, Bell & Lilburn 2005 Chromatiales Imhoff 2005 "Comchoanobacterales " Needham et al. 2022
"Competibacterales " Chuvochina et al. 2023
Coxiellales Chuvochina et al. 2024 Diplorickettsiales " Chuvochina et al. 2024 Acidihalobacteraceae Chuvochina et al. 2024 {DSM-5130}Ectothiorhodospirales Chuvochina et al. 2024 Enterobacterales Adeolu et al. 2016 ("Bacteriales"; Orbales ,"Johnevansiales"; "Aerobacterales"; Aeromonadales ; Alteromonadales ; Kangiellales; Pasteurellales ; "Vibrionales ")"Foliamicales " Nguyen et al. 2023
Francisellales Chuvochina et al. 2024 Granulosicoccales Chuvochina et al. 2024 "Halofilales " Pallen, Rodriguez-R & Alikhan 2022 [XJ16]
Halothiobacillales Chuvochina et al. 2024 Immundisolibacterales Corteselli, Aitken & Singleton 2017 "Inmiraniales " Pallen, Rodriguez-R & Alikhan 2022 [DSM-100275]
Sulfurivermis Kojima, Watanabe & Fukui 2017 {JG42: JG42}Legionellales Garrity, Bell & Lilburn 2005 "Macondimonadales " Pallen, Rodriguez-R & Alikhan 2022 [UBA5335]
"Magnimaribacterales " Ramfelt et al. 2024 [SAR86: SAR156]
Methylococcales Bowman 2005 Methylohalomonadales Sorokin & Merkel 2023 Natronospirales Sorokin et al. 2025 {SLND01: SLND01}Nevskiales Naushad et al. 2015 ("Salinisphaerales")Nitrococcales Chuvochina et al. 2024 Nitrosococcales Chuvochina et al. 2024 "Pelagibaculales " Pallen, Rodriguez-R & Alikhan 2022 [HP12]
Piscirickettsiales Chuvochina et al. 2024 "Porifericomitales " Nguyen et al. 2023
"Poriferisulfidales " Nguyen et al. 2023 ex Chuvochina et al. 2023
Pseudomonadales Orla-Jensen 1921 (Cellvibrionales ; Moraxellales; Oceanospirillales )"Rariloculales " Nguyen et al. 2022
"Reidiellales " Pallen, Rodriguez-R & Alikhan 2022 [GCF-013343005]
"Riflewellaceae " Zhou et al. 2020 {UBA4486}
Steroidobacterales Chuvochina et al. 2024 "Sulfuriflexales " Pallen, Rodriguez-R & Alikhan 2022 [AKS1]
"Taraoceanobacteraceae " Zhou et al. 2020 {UBA11654}
"Tenderiales " Chuvochina et al. 2023
"Thioalbales " Pallen, Rodriguez-R & Alikhan 2022 [DSM-26407]
"Thioglobales " Pallen, Rodriguez-R & Alikhan 2022 [PS1]
"Thiogranales " Pallen, Rodriguez-R & Alikhan 2022 [DSM-19610]
Thiohalobacterales Sorokin & Merkel 2023 Thiohalomonadales Sorokin & Merkel 2023 "Thiohalophilales " Pallen, Rodriguez-R & Alikhan 2022 {UBA6429}
Thiohalorhabdales Sorokin & Merkel 2023 Thiohalospirales Sorokin & Merkel 2023 Thiomicrospirales Chuvochina et al. 2024 "Thiopontiales " Pallen, Rodriguez-R & Alikhan 2022 [GCF-002020875]
Thiotrichales Garrity, Bell & Lilburn 2005 Woeseiales Chuvochina et al. 2024 Xanthomonadales Saddler & Bradbury 2005 non Chadefaud 1950a (Lysobacterales ) List of Candidate Phyla [ edit ]
^ J.P. Euzéby. "Bacteria" . List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2021-06-27 . ^ Sayers; et al. "Bacteria" . National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2021-03-20 . ^ All-Species Living Tree Project ."16S rRNA-based LTP release 132" . Silva Comprehensive Ribosomal RNA Database . Retrieved 2020-08-20 .^ Parks, DH; Chuvochina, M; Waite, DW; Rinke, C; Skarshewski, A; Chaumeil, PA; Hugenholtz, P (November 2018). "A standardized bacterial taxonomy based on genome phylogeny substantially revises the tree of life". Nature Biotechnology . 36 (10): 996– 1004. bioRxiv 10.1101/256800 doi :10.1038/nbt.4229 . PMID 30148503 . S2CID 52093100 . ^ Parks, DH; Chuvochina, M; Chaumeil, PA; Rinke, C; Mussig, AJ; Hugenholtz, P (September 2020). "A complete domain-to-species taxonomy for Bacteria and Archaea" . Nature Biotechnology . 38 (9): 1079– 1086. bioRxiv 10.1101/771964 doi :10.1038/s41587-020-0501-8 . PMID 32341564 . S2CID 216560589 . ^ Chaumeil, PA; Mussig, AJ; Hugenholtz, P; Parks, DH (15 November 2019). "GTDB-Tk: a toolkit to classify genomes with the Genome Taxonomy Database" . Bioinformatics . 36 (6): 1925– 1927. doi :10.1093/bioinformatics/btz848 PMC 7703759 PMID 31730192 . ^ Almeida, Alexandre; Nayfach, Stephen; Boland, Miguel; Strozzi, Francesco; Beracochea, Martin; Shi, Zhou Jason; Pollard, Katherine S.; Sakharova, Ekaterina; Parks, Donovan H.; Hugenholtz, Philip; Segata, Nicola; Kyrpides, Nikos C.; Finn, Robert D. (20 July 2020). "A unified catalog of 204,938 reference genomes from the human gut microbiome" . Nature Biotechnology . 39 (1): 105– 114. doi :10.1038/s41587-020-0603-3 PMC 7801254 PMID 32690973 . ^ Nayfach, Stephen; et al. (9 November 2020). "A genomic catalog of Earth's microbiomes" . Nature Biotechnology . 39 (4): 499– 509. doi :10.1038/s41587-020-0718-6 PMC 8041624 PMID 33169036 . ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak "GTDB release 09-RS220" . Genome Taxonomy Database . Retrieved 10 May 2024 .^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak "bac120_r220.sp_labels" . Genome Taxonomy Database . Retrieved 10 May 2024 .^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak "Taxon History" . Genome Taxonomy Database . Retrieved 10 May 2024 .
Terrabacteria BV1, BV3, BV5
others Cyanoprokaryota
Cyanobacteriota
"Margulisiibacteriota "
"Marinamargulisbacteria"
"Riflemargulisbacteria"
"Saganbacteria"
"Termititenacia" Firmicutes BV3 Low GC
Bacillota
Bacillota A
"Clostridiia "
"Thermoanaerobacteria"
Thermosediminibacteria
Bacillota D
Bacillota E
Sulfobacillia
Symbiobacteriia
Thermaerobacteria
Bacillota G
"Hydrogenisporia"
Limnochordia
"Desulfotomaculota "
"Carboxydocellia"
"Carboxydothermia"
"Dehalobacteriia"
Desulfitobacteriia
Desulfotomaculia
"Moorellia"
Peptococcia
Syntrophomonadia
Thermincolia
"Halanaerobiaeota"
"Selenobacteria"
CPR group Thermotogida
Fusobacterida Hydrobacteria BV2, BV4
others