Incertae sedis ====Phylum "
Muiribacteriota"==== }} • 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 "
Wallbacteriia" [UBA9980] (RIF33) ====Phylum "
Lindowiibacteriota"==== ====Phylum "
Macinerneyibacteriota"==== • Class "Macinerneyibacteriia" corrig. Yadav et al. 2020 • "
Macinerneyibacteriales" corrig. Yadav et al. 2020 ====Phylum "
Babelota"==== • Class "Babeliae" (sic) Yeoh et al. 2016 (TM6) • "
Babelales" corrig. Yeoh et al. 2016 ====Phylum
Campylobacterota==== }} • Class
Desulfurellia Waite et al. 2020 •
Desulfurellales Kuever, Rainey & Widdel 2006 • Class "
Campylobacteria" Oren, Parte & Garrity 2016 ex Waite et al. 2017 •
Campylobacterales Garrity, Bell & Lilburn 2006 •
Nautiliales Miroshnichenko et al. 2004 ====Phylum
Spirochaetota==== }} • Class Leptospiria Chuvochina et al. 2024 •
Leptospirales corrig. Gupta et al. 2014 •
Turneriellales Chuvochina et al. 2024 • Class Brevinematia Chuvochina et al. 2024 •
Brevinematales Gupta et al. 2014 • Class Brachyspiria Chuvochina et al. 2024 •
Brachyspirales corrig. Gupta et al. 2014 • Class "Exilispiria" Pallen, Rodriguez-R & Alikhan 2022 • "
Exilispirales" Pallen, Rodriguez-R & Alikhan 2022 • Class
Spirochaetia Paster 2020 • ?
Spirochaetales Buchanan 1917 •
Borreliales Chuvochina et al. 2024 •
Spirochaeta cellobiosiphila Breznak & Warnecke 2008 {DSM-17781: DSM-17781} • "
Entomospirales" Pallen, Rodriguez-R & Alikhan 2022 [WRBN01] • "
Candidatus Haliotispira" Sharma et al. 2024 {SP-2023: SP-2023} • "
Marispirochaetales" Pallen, Rodriguez-R & Alikhan 2022 [JC444] • "
Salinispirales" Pallen, Rodriguez-R & Alikhan 2022 [DSM-27196] • "
Sediminispirochaetales" Pallen, Rodriguez-R & Alikhan 2022 [DSM-16054] •
Sphaerochaetales Chuvochina et al. 2024 • Spirochaetales_E • "
Candidatus Thalassospirochaeta" Pragya et al. 2024 {UBA9216: UBA9216} •
Treponematales Chuvochina et al. 2024 • "
Winmispirales" Podosokorskaya et al. 2025 ====Phylum "
Goldiibacteriota"==== • "
Candidatus Cellulosimonas" Doud et al. 2020 ====Phylum "
Firestoneibacteriota"==== ====Phylum "
Ryujiniota"==== • Class "Ryujiniia" Sun et al. 2025 • "
Ryujiniales" Sun et al. 2025 [UBA6262] ====Phylum
Elusimicrobiota==== }} • Class "Elusimicrobiia" Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020 (TG1) •
Elusimicrobiales Geissinger et al. 2010 • "
Obscuribacteriales" Uzun et al. 2023 • Class "Endomicrobiia" Stingl et al. 2018 • "
Endomicrobiales" Zheng et al. 2018 ====Phylum "
Desantisiibacteriota"==== ====Phylum "
Aerophobota"==== • Class "
Aerophobia" Chuvochina et al. 2023 (CD12) • "
Aerophobales" Chuvochina et al. 2023 ====Phylum "
Ratteibacteriota"==== ====Phylum "
Omnitrophota"==== }} • Class "Omnitrophia" (OP3) • "
Omnitrophales" • Class "
Velamenicoccia" Pallen, Rodriguez-R & Alikhan 2022 [Koll11] • "
Aquitaenarimonadales" Seymour et al. 2022 • "
Aquiviventales" Seymour et al. 2022 • "
Duberdicusellales" Seymour et al. 2022 • "
Ghiorseimicrobiales" Seymour et al. 2022 • "
Gorgyraeales" Seymour et al. 2023 [UBA10183] • "
Gygaeellales" Seymour et al. 2023 [GIF10] • "
Kaelpiales" Seymour et al. 2022 [4484-49] • "
Kappaeales" Seymour et al. 2022 • ?"
Candidatus Orphnella" Williams et al. 2021 {JABMRG01: JABMRG01} • "
Pluralincolimonadales" Seymour et al. 2022 • "
Taenaricolales" Seymour et al. 2022 • "
Tantalellales" Seymour et al. 2022 [SKK-01] • "
Velamenicoccales" Pallen, Rodriguez-R & Alikhan 2022 [UBA1572] • "
Velesiimonadales" Seymour et al. 2022 • "
Zapsychrales" Seymour et al. 2022 ====Phylum "
Fidelibacterota"==== • ?"
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 •
Fidelibacterales Katayama et al. 2024 ====Phylum "
Heilongiota"==== • Class "Heilongiia" corrig. Zhang et al. 2022 • ?"
Heilongiales" Zhang et al. 2022 ====Phylum "
Saltatorellota"==== • Class "Saltatorellae" Wiegand et al. 2019 • ?"
Saltatorellales" Wiegand et al. 2019 ====Phylum "
Tianyaibacteriota"==== • ?"
Candidatus Tianyaibacterium" corrig. Cui et al. 2021 ====Phylum "
Hinthialibacterota"==== • Class "Hinthialibacteria" Williams et al. 2022 • "
Hinthialibacterales" Williams et al. 2022 (OLB16) ====Phylum "
Sumerlaeota"==== • Class "Sumerlaeia" Kadnikov et al. 2018 • "
Sumerlaeales" Kadnikov et al. 2018 ====Phylum "
Abyssobacterota"==== ====Phylum "
Poribacteriota"==== • Class ?"
Entoporibacteria" Podell et al. 2019 • Class ?"
Pelagiporibacteria" Podell et al. 2019 ====Phylum "
Hydrogenedentota"==== • Class "Hydrogenedentia" Chuvochina et al. 2023 (NKB19) • "
Hydrogenedentales" corrig. Chuvochina et al. 2023 ===Clade
Planctobacteria=== ====Phylum
Planctomycetota==== }} • Class "Uabimicrobiia" Lodha, Narvekar & Karodi 2021 • "
Uabimicrobiales" Lodha, Narvekar & Karodi 2021 • Class "Brocadiia" JLodha, Narvekar & Karodi 2021 • "
Brocadiales" Jetten et al. 2010 • "
Hypogeohydatales" Wu et al. 2023 [YC14-17: JP1] • "
Wukongales" Wu et al. 2023 [YC18] • Class
Phycisphaeria Oren, Parte & Garrity 2016 •
Phycisphaerales Fukunaga et al. 2010 •
Sedimentisphaerales Spring et al. 2018 •
Tepidisphaerales Kovaleva et al. 2015 • Class
Planctomycetia Ward 2020 •
Gemmatales Dedysh et al. 2020 •
Isosphaerales Dedysh et al. 2020 •
Pirellulales Dedysh et al. 2020 •
Planctomycetales Schlesner & Stackebrandt 1987 em. Ward 2011 ====Phylum "
Auribacterota"==== }} • Class "Ancaeobacteria" Williams et al. 2022 [JAKLEM01] • "
Ancaeobacterales" Williams et al. 2022 • Class "Auribacteria" Williams et al. 2022 [SURF-26] • "
Auribacterales" Williams et al. 2022 • Class "Erginobacteria" Williams et al. 2022 [PUNC01] • "
Erginobacterales" Williams et al. 2022 • Class JACPWU01 • "
Theseobacterales" Williams et al. 2022 • Class "Tritonobacteria" Williams et al. 2022 [UBA1439] • "
Tritonobacterales" Williams et al. 2022 ====Phylum
Chlamydiota==== }} • Class
Chlamydiia Horn 2011 • "
Similichlamydiales" Pallen, Rodriguez-R & Alikhan 2022 [Hat2] •
Chlamydiales Storz & Page 1971 em. Everett et al. 1999 (Parachlamydiales, "Anoxychlamydiales", "Simkaniales") ====Phylum
Verrucomicrobiota==== }} • Class Lentisphaeria Cho et al. 2004 •
Lentisphaerales Cho et al. 2004 •
Oligosphaerales Qiu et al. 2013 •
Victivallales Cho et al. 2004 • Class Kiritimatiellae Spring et al. 2017 •
Kiritimatiellales Spring et al. 2017 [incl. Tichowtungiales] • "
Spyradenecales" Pallen, Rodriguez-R & Alikhan 2022 [RFP12] • Class Verrucomicrobiia corrig. Hedlund, Gosink & Staley 1998 •
Limisphaerales Podosokorskaya et al. 2023 •
Methylacidiphilales Awala et al. 2023 ["Pedosphaerales"] •
Opitutales Choo et al. 2007 (Puniceicoccales) •
Terrimicrobiales García-López et al. 2020 ("Chthoniobacterales") •
Verrucomicrobiales Ward-Rainey et al. 1996 em. Yoon et al. 2008 ===Clade
FCB group=== ====Phylum "
Tangaroaeota"==== • Class "Tangaroaeia" Sun et al. 2025 ("Aegiribacteria") • "
Tangaroaeales" Sun et al. 2025 (Hyd24-12) ====Phylum "
Edwardsiibacteriota"==== ====Phylum "
Latescibacterota"==== }} • Class "
Handelsmanbacteria" (RIF27) • Class "Latescibacteria" Chuvochina et al. 2023 • "
Latescibacterales" Chuvochina et al. 2023 (WS3) ====Phylum "
Zixiibacteriota"==== ====Phylum "
Fermentibacterota"==== • Class "
Fermentibacteria" Kirkegaard 2016 ("Aegiribacteria") • "
Fermentibacterales" Kirkegaard 2016 (Hyd24-12) ====Phylum "
Orphanbacterota"==== • Class "Orphanbacteria" Gong et al. 2022 • "
Orphanbacterales" Gong et al. 2022 ====Phylum "
Arandabacterota"==== • Class "Arandabacteria" Gong et al. 2022 • "
Arandabacterales" Gong et al. 2022 ====Phylum "
Joyebacterota"==== • Class "Joyebacteria" Gong et al. 2022 • "
Joyebacterales" Gong et al. 2022 ====Phylum "
Eiseniibacteriota"==== ====Phylum "
Krumholzibacteriota"==== }} • Class "Krumholzibacteriia" corrig. Youssef et al. 2019 • "
Delphibacterales" (DOLZORAL124_64_63; LZORAL124-64-63) • "
Krumholzibacteriales" Youssef et al. 2019 (UBP1) ====Phylum "
Blakebacterota"==== • Class "Blakebacteria" Gong et al. 2022 • "
Blakebacterales" Gong et al. 2022 ====Phylum
Gemmatimonadota==== }} • Class "
Glassbacteria" (RIF5) • Class
Gemmatimonadetes Zhang et al. 2003 • ?
Gaopeijiales Ye et al. 2025 •
Gemmatimonadales Zhang et al. 2003 •
Longimicrobiales Pascual et al. 2016 • "
Palaucibacterales" Aldeguer-Riquelme, Antón & Santos 2022 [PAUC43f] ====Phylum "
Hydrothermota"==== }} • Class "Tepidihabitantia" Slobodkina et al. 2025 • ?"
Tepidihabitantales" Slobodkina et al. 2025 [UBA2258: JABLX01] • 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] ====Phylum "
Cloacimonadota"==== }} • 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) ====Phylum
Fibrobacterota==== }} • Class "
Raymondbacteria" (RIF7; OXYB2-FULL-49-7) • Class
Chitinivibrionia Sorokin et al. 2014 •
Chitinivibrionales Sorokin et al. 2014 ["
Chitinispirillales"] • Class Fibrobacteria Spain et al. 2012 •
Fibrobacterales Spain et al. 2012 ["Fibromonadales"] ====Phylum "
Marinisomatota"==== • Class "Marinisomatia" • "
Marinisomatales" (SAR406) ====Phylum
Calditrichota==== • Class Calditrichia Kublanov et al. 2022 •
Calditrichales Kublanov et al. 2020 ====Phylum "
Zhuqueibacterota"==== }} • Class "Cosmopoliia" corrig. Zhang et al. 2023 • "
Cosmopoliales" Zhang et al. 2023 [QNDG01] • Class "Zhuqueibacteria" Lian et al. 2024 • "
Oceanimicrobiales" Lian et al. 2024 • "
Oleimicrobiales" Lian et al. 2024 • "
Residuimicrobiales" Lian et al. 2024 • "
Sulfurfontimicrobiaceae" Lian et al. 2024 • "
Thermofontimicrobiales" Lian et al. 2024 • "
Zhuqueibacterales" Lian et al. 2024 ====Phylum "
Effluvivivacota"==== • Family "Effluvivivacaceae" corrig. Su et al. 2024 (VGIX01) ====Phylum
Bacteroidota_A==== }} • Class "Kapaibacteriia" corrig. Chuvochina et al. 2023 (OPB56) • "
Kapaibacteriales" corrig. Chuvochina et al. 2023 • Class "Kryptonia" • "
Kryptoniales" • Class "
Ignavibacteriia" Oren, Parte & Garrity 2016 ex Cavalier-Smith 2022 •
Ignavibacteriales Iino et al. 2010 • "
Tepidaquicellales" corrig. Kadnikov et al. 2020 • Class
Chlorobiia Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020 •
Chlorobiales Gibbons & Murray 1978 • Class
Rhodothermia Munoz, Rossello-Mora & Amann 2017 •
Balneolales Munoz, Rossello-Mora & Amann 2017 •
Rhodothermales Munoz, Rossello-Mora & Amann 2017 ====Phylum "
Electryoneota"==== }} • Class "Electryoneia" Williams et al. 2022 •
Electryoneales Williams et al. 2022 • Class AABM5-125-24 •
Hatepunaeales Williams et al. 2022 • Class "Tariuqbacteria" Vigneron, Vincent & Lovejoy 2023 •
Tariuqbacterales Vigneron, Vincent & Lovejoy 2023 ====Phylum "
Delongiibacteriota"==== ====Phylum
Bacteroidota==== }} • Class
Bacteroidia Krieg 2012 • "
Amoebophilaceae" Santos-Garcia et al. 2014 {Cytophagales_A} •
Aurantibacillaceae Vieira et al. 2023 {B-17B0} •
Bacteroidales Krieg 2012 [Marinilabiliales; "Sulfidibacteriales"] •
Blattabacteriaceae Kambhampati 2012 {Flavobacteriales_B} •
Chitinophagales Munoz, Rossello-Mora & Amann 2017 [Saprospirales] •
Cytophagales Leadbetter 1974 [Cyclobacteriales] •
Flavobacteriales Bernardet 2012 •
Sphingobacteriales Kämpfer 2012 ===Clade
Proteobacteria=== ====Phylum "
Canglongiota"==== • Class "Canglongiliia" Zhang et al. 2022 • ?"
Canglongiales" Zhang et al. 2022 ====Phylum
Acidobacteriota==== }} • Class "
Fischerbacteria" (RIF25; HRBIN11) • Class "Guanabaribacteriia" corrig. Tschoeke et al. 2020 • "
Guanabaribacteriales" corrig. Tschoeke et al. 2020 • Class "Aminicenantia" Chuvochina et al. 2023 • "
Aminicenantales" Kadnikov et al. 2019 ex Chuvochina et al. 2023 (OP8) • Class
Thermoanaerobaculia Dedysh & Yilmaz 2018 • "
Multivorales" Nguyen 2022 •
Thermoanaerobaculales Dedysh & Yilmaz 2018 • Class "
Holophagia" Oren, Parte & Garrity 2016 •
Acanthopleuribacterales Fukunaga et al. 2008 •
Holophagales Fukunaga et al. 2008 •
Thermotomaculales Dedysh & Yilmaz 2018 • Class "Polarisedimenticolia" Flieder et al. 2021 • "
Polarisedimenticolales" Flieder et al. 2021 • Class
Vicinamibacteria Dedysh & Yilmaz 2018 • "
Marinacidobacterales" Nguyen 2022 •
Vicinamibacterales Dedysh & Yilmaz 2018 • Class
Blastocatellia Pascual et al. 2016 • ?"
Frugalibacteriales" Ruhl et al. 2022 •
Blastocatellales Pascual et al. 2016 • "
Chloracidobacteriales" • Class
Acidobacteriia Thrash & Coates 2010 •
Acidobacteriales Cavalier-Smith 2002 [Terriglobales] • "
Acidoferrales" Epihov et al. 2021 •
Bryobacterales Dedysh & Yilmaz 2018 ["Solibacterales"] • "
Versatilivorales" Nguyen 2022 ====Phylum
Bdellovibrionota==== }} • Class
Bdellovibrionia Waite et al. 2020 •
Bdellovibrionales Garrity, Bell & Lilburn 2006 • Class
Bacteriovoracia Waite et al. 2020 •
Bacteriovoracales Hahn et al. 2017
Phylum Desulfobacterota G • Class Syntrophorhabdia Waite et al. 2020 •
Syntrophorhabdales Waite et al. 2020
Phylum "Acidulodesulfobacteriota" • Class "Acidulodesulfobacteriia" (sic) Pallen, Rodriguez-R & Alikhan 2022 [SZUA-79] • "
Acidulidesulfobacterales" corrig. Tan et al. 2019 ====Phylum "
Dadaibacteriota"==== • Class "Dadabacteria" (sic) Hug et al. 2016 [CSP1-2] • "
Nemesobacterales" Gavriilidou et al. 2023 ====Phylum "
Calescibacteriota"==== • Class "Calescibacteriia" Chuvochina et al. 2023 (EM19) • "
Calescibacteriales" Chuvochina et al. 2023 ====Phylum
Thermosulfidibacterota==== • Class Thermosulfidibacteria Cavalier-Smith 2020 ex Chuvochina et al. 2024 •
Thermosulfidibacterales Cavalier-Smith 2020 ex Chuvochina et al. 2024 ====Phylum
Aquificota==== }} • Class Desulfurobacteriia Chuvochina et al. 2024 •
Desulfurobacteriales Gupta & Lali 2014 • Class
Aquificia corrig. Reysenbach 2002 •
Aquificales Reysenbach 2002 (Hydrogenothermales) ====Phylum "
Deferrimicrobiota"==== • Class "Deferrimicrobiia" corrig. Begmatov et al. 2022 •
Deferrimicrobiales Begmatov et al. 2022 ====Phylum "
Deferrisomatota"==== • Class
Deferrisomatia Waite et al. 2020 •
Deferrisomatales Waite et al. 2020 ====Phylum "
Lernaellota"==== }} • Class "Lernaellia" Williams et al. 2022 [FEN-1099] • "
Alcyoniellaceae" Williams et al. 2022 {JAVCCG01} • "
Lernaellales" Williams et al. 2022 ====Phylum "
Binatota"==== • Class "Binatia" Chuvochina et al. 2019 ex Chuvochina et al. 2023 • "
Binatales" Chuvochina et al. 2019 ex Chuvochina et al. 2023 ====Phylum
Myxococcota==== }} • Class "Kuafubacteriia" corrig. Li et al. 2023 • "
Kuafubacteriales" Li et al. 2023 [WYAZ01: GCA_016703535] • Class
Myxococcia Waite et al. 2020 •
Myxococcales Tchan, Pochon & Prévot 1948 [Archangiales; "Angiobacteriales"; "Angiococcales"] (fruiting gliding bacteria) • Class Bradymonadia corrig. Chuvochina et al. 2024 •
Bradymonadales Wang et al. 2015 • Class Polyangiia corrig. Waite et al. 2020 •
Haliangiales Waite et al. 2020 •
Nannocystales (Reichenbach 2007) Waite et al. 2020 •
Polyangiales Tchan, Pochon & Prevot 1948 [Myxobacterales] ====Phylum "
Nitrosediminicolota"==== • ?
Candidatus "
Nitrosediminicola" Zhao, Jorgensen & Babbin 2024 ====Phylum "
Schekmaniibacteriota"==== ====Phylum "
Moduliflexota"==== • Class "Moduliflexia" Sekiguchi et al. 2015 (KSB3) • "
Moduliflexales" Sekiguchi et al. 2015 ====Phylum "
Spongiamicota"==== • Class "Spongiamicia" Sun et al. 2025 [UBA8248] • "
Spongiamicales" Sun et al. 2025 ====Phylum "
Tectimicrobiota"==== • Class "Entotheonellia" Chuvochina et al. 2023 • "
Entotheonellales" Schmidt et al. 2000 ex Chuvochina et al. 2023 ====Phylum
Nitrospinota==== • Class Nitrospinia Lucker et al. 2022 •
Nitrospinales Lucker et al. 2022 ====Phylum "
Methylomirabilota"==== }} • Class "Methylomirabilia" Chuvochina et al. 2023 • "
Methylomirabilales" Cabrol et al. 2020 ex Chuvochina et al. 2023 • "
Rokubacteriales" (CSP1-6) ====Phylum
Nitrospirota==== }} • Class Thermodesulfovibrionia Umezawa et al. 2023 • ?"
Mariimomonadales" Yoon et al. 2023 •
Thermodesulfovibrionales Umezawa et al. 2023 ["Magnetobacteriales"] • Class
Nitrospiria Garrity & Holt 2022 •
Nitrospirales Garrity & Holt 2022 • "
Troglogloeales" Yu et al. 2022 ["Manganitrophales"] ====Phylum
Thermodesulfobacteriota==== }} • Class "Zymogeniia" corrig. Murphy et al. 2021 • "
Zymogeniales" Murphy et al. 2021 • Class "Anaeroferrophilia" corrig. Murphy et al. 2021 • "
Anaeroferrophilales" Murphy et al. 2021 ["Tharpellales"] • Class Desulfuromonadia Waite et al. 2020 •
Desulfuromonadales corrig. Kuever, Rainey & Widdel 2006 •
Geobacterales Waite et al. 2020 • Class
Desulfomonilia Waite et al. 2020 •
Desulfomonilales Waite et al. 2020 • Class
Syntrophia Waite et al. 2020 •
Syntrophales Waite et al. 2020 • Class Dissulfuribacteria Waite et al. 2020 •
Dissulfuribacterales Waite et al. 2020 • Class
Thermodesulfobacteriia corrig. Hatchikian, Ollivier & Garcia 2002 •
Thermodesulfobacteriales Hatchikian, Ollivier & Garcia 2002 • Class Desulfobulbia Waite et al. 2020 •
Desulfobulbales Waite et al. 2020 • Class "Desulfofervidia" Waite et al. 2020 • "
Desulfofervidales" Waite et al. 2020 • Class "Desulfatiglandia" Pallen, Rodriguez-R & Alikhan 2022 [DSM-4660] •
Desulfatiglandales Waite et al. 2020 • Class Desulfobaccia Waite et al. 2020 •
Desulfobaccales Waite et al. 2020 • Class Desulfarculia Waite et al. 2020 • "
Adiutricales" Waite et al. 2020 •
Desulfarculales corrig. Kuever, Rainey & Widdel 2006 • Class
Syntrophobacteria Waite et al. 2020 •
Syntrophobacterales Waite et al. 2020 • Class Desulfobacteria Waite et al. 2020 •
Desulfobacterales Kuever, Rainey & Widdel 2006 ====Phylum "
Leptospirillaeota"==== • Class "Leptospirillia" Chuvochina et al. 2023 • "
Leptospirillales" Chuvochina et al. 2023 ====Phylum "
Desulfovibrionota"==== }} • Class
Desulfovibrionia Waite et al. 2020 •
Desulfovibrionales Kuever, Rainey & Widdel 2006
Phylum SAR324 • Class
Lambdaproteobacteria Anantharaman et al. 2016 (RIF24) ====Phylum "
Oligoflexaeota"==== }} • Class
Oligoflexia Nakai et al. 2014 •
Oligoflexales Nakai et al. 2014 •
Silvanigrellales Hahn et al. 2017 ====Phylum
Chrysiogenota==== }} • Class
Chrysiogenetes Garrity & Holt 2002 •
Chrysiogenales Garrity & Holt 2002 • Class
Deferribacteres Huber & Stetter 2002 em. Jumas-Bilak et al. 2009 •
Deferribacterales Huber & Stetter 2002 ["Geovibriales"] ====Phylum
Pseudomonadota==== }} • Class "Anaeropigmentatia" corrig. Murphy et al. 2021 • ?
Anaeropigmentatales corrig. Murphy et al. 2021 • Class
Caulobacteria" Oren, Parte & Garrity 2016 ex Cavalier-Smith 2020 • ?"
Methylospongiales" Podell et al. 2020 • Clade "Rhodobacteriae" •
Hyphomicrobiales Douglas 1957 (
Rhizobiales) • "
Pelagibacterales" Grote et al. 2012 •
Rhodobacterales Garrity, Bell & Lilburn 2006 • Sublass "Rickettsiidae" corrig. Ferla et al. 2013 • "
Enterousiales" Pallen, Rodriguez-R & Alikhan 2022 {Rs-D84} •
Rickettsiales Gieszczykiewicz 1939 emend. Dumler et al. 2001 • "
Scatocolales" Pallen, Rodriguez-R & Alikhan 2022 [RF32] }} • Sublass "
Caulobacteridae" Ferla et al. 2013 •
Acetobacterales Chuvochina et al. 2024 •
Azospirillales Chuvochina et al. 2024 • "
Ca. Bealeia" Szokoli et al. 2016 {UBA9655: UBA9655} • "
Ca. Bodonicaedibacter" corrig. Midha et al. 2021 {UBA6184: UBA6184} •
Caulobacterales Henrici & Johnson 1935 (
Hyphomonadales;
Maricaulales;
Parvularculales) • "
Caedimonadales" •
Dongiales Chuvochina et al. 2024 •
Elsterales Chuvochina et al. 2024 •
Ferrovibrionales Chuvochina et al. 2024 • "
Futianiales" Liu et al. 2022 •
Geminicoccales Chuvochina et al. 2024 •
Holosporales Szokoli et al. 2016 • "
Inquilinales" Pallen, Rodriguez-R & Alikhan 2022 [DSM-16000] •
Kiloniellales Wiese et al. 2009 • "
Marivibrionales" Pallen, Rodriguez-R & Alikhan 2022 • "
Methylospongiales" Podell et al. 2020 • "
Micavibrionales" • "
Ca. Micropelagius" Jimenez-Infante et al. 2014 {RS24} •
Micropepsales Harbison et al. 2016 •
Minwuiales Sun et al. 2018 •
Oceanibaculales Chuvochina et al. 2024 • "
Paracaedibacterales" Chuvochina et al. 2023 •
Parvibaculales Chuvochina et al. 2024 • "
Planktothermales" Zhou et al. 2020 [UBA7887] •
Puniceispirillales Chuvochina et al. 2024 •
Pyruvatibacter Wang et al. 2016 {CGMCC-115125} •
Reyranellales Chuvochina et al. 2024 •
Rhodospirillales Pfennig & Truper 1971 •
Sphingomonadales Yabuuchi & Kosako 2006 (
Emcibacterales;
Iodidimonadales;
Kordiimonadales;
Rhodothalassiales) •
Sneathiellales Kurahashi et al. 2008 •
Stellales Pallen, Rodriguez-R & Alikhan 2022 [ATCC43930] • "
Tagaeales" Pallen, Rodriguez-R & Alikhan 2022 [CACIAM-22H2] •
Thalassobaculales Chuvochina et al. 2024 •
Tistrellales Chuvochina et al. 2024 •
Zavarziniales Chuvochina et al. 2024 • Class "Mariprofundia" Cavalier-Smith 2020 ["Zetaproteobacteria"] •
Mariprofundales Makita et al. 2017 • Class Magnetococcia Chuvochina et al. 2024 •
Magnetococcales Bazylinski et al. 2013 • Class
Pseudomonadia" Oren, Parte & Garrity 2016 • ?"
Ferritrophicales" Weiss et al. 2007 • ?"
Kopriimonadales" Kwon et al. 2005c • ?"
Siderophilales" corrig. Corbera-Rubio et al. 2024 • ?"
Spongiifermentales" Nguyen et al. 2023 •
Thiohalorhabdales Sorokin & Merkel 2023 • Subclass "Acidithiobacillidae" Cavalier-Smith 2020 •
Acidithiobacillales Garrity, Bell & Lilburn 2005 • Subclass "Neisseriidae" Cavalier-Smith 2020 (
Betaproteobacteria) •
Burkholderiales Garrity, Bell & Lilburn 2006 ("Ferrovales"; "Gallionellales";
Hydrogenophilales;
Methylophilales;
Neisseriales;
Nitrosomonadales; "
Procabacteriales";
Rhodocyclales; Spirillales; Sulfuricellales) • "
Tethybacterales" Taylor et al. 2021 }} }} • Subclass "Pseudomonadidae" Cavalier-Smith 2020 • "
Ca. Legionella polyplacis" Ríhová et al. 2017 {G002776555: G002776555} •
Acidiferrobacterales Kojima, Shinohara & Fukui 2015 •
Acidihalobacteraceae Chuvochina et al. 2024 {DSM-5130} • "
Aquicellales" Pallen, Rodriguez-R & Alikhan 2022 [DSM-16500] •
Arenicellales Teramoto, Yagyu & Nishijima 2015 • "
Azoamicaceae" Speth et al. 2023 {G016432505} •
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 •
Ectothiorhodospirales Chuvochina et al. 2024 •
Enterobacterales Adeolu et al. 2016 ("Bacteriales";
Orbales; "Aerobacterales";
Aeromonadales;
Alteromonadales; Kangiellales;
Pasteurellales; "
Vibrionales") • Enterobacteriaceae_A {Enterobacterales_A} • "
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] •
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 ("Eutrophobiales") •
Natronospirales Sorokin et al. 2025 •
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] •
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} •
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==