The Eubacteriales are an order of bacteria placed within the class Clostridia.
Phylogeny
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[3] and National Center for Biotechnology Information (NCBI)[4]
External phylogeny
| 16S rRNA based LTP_10_2024[5][6][7] | 120 marker proteins based GTDB 09-RS220[8][9][10] | 
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| Eubacteriales | 
|  | Garciellaceae
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|  | Eubacteriaceae [incl. Anaerofustaceae & Alkalibacteraceae]
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| Tissierellales~ | 
|  | Gottschalkiaceae
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|  | Proteiniboraceae
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|  | Thermohalobacteraceae
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|  | Caldisalinibacteraceae
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|  | Sporosalibacteriaceae
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|  | Clostridiisalibacteraceae
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|  | Senegaliaceae
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| Tissierellales | 
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|  | Dethiosulfatibacteraceae
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|  | Sedimentibacteraceae
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|  | Acidilutibacteraceae
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|  | Sporanaerobacteraceae
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|  | Tepidimicrobiaceae
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|  | Tissierellaceae
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|  | Peptoniphilaceae
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| Peptostreptococcales | 
|  | Caminicellaceae
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|  | Guggenheimella
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|  | "Fusibacteraceae"
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|  | Acidaminobacteraceae
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|  | Anaerovoracaceae ["Mogibacteriaceae"]
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|  | Gracilibacteraceae
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| Lutisporales | Lutisporaceae
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| Christensenellales | 
|  | Pumilibacteraceae
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|  | Christensenellaceae
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|  | Aristaeellaceae [incl. Gehongia, Luoshenia]
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| Mahellales | Mahellaceae
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| Caldicoprobacterales | 
|  | Xylanivirgaceae
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|  | Caldicoprobacteraceae
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| "Petroclostridiales" | "Petroclostridiaceae"
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| Monoglobales | Monoglobaceae
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| Acetivibrionales | 
|  | "Thermoclostridiaceae"
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|  | Fastidiosipilaceae ["Mageeibacillaceae"]
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|  | "Saccharofermentanaceae"
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|  | Acetivibrionaceae ["Anaerobacteriaceae"; "Pseudobacteroidaceae", "Ruminiclostridiaceae"]
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| "Oscillospirales" |  |  
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| Lachnospirales | 
|  | Anaerotignaceae
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|  | "Gallispiraceae" [incl. Anaeropeptidivorans]
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|  | Defluviitaleaceae
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|  | Cellulosilyticaceae
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|  | Vallitaleaceae ["Natranaerovirgaceae"]
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|  | Lachnospiraceae Rainey 2010
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| "Clostridiia" | 
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| Mahellales | Mahellaceae Chuvochina et al. 2024
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| Caldicoprobacterales | 
|  | Xylanivirgaceae Liu et al. 2020
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|  | Caldicoprobacteraceae Yokoyama et al. 2010
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| Lutisporales | Lutisporaceae Chuvochina et al. 2024
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| Clostridiales | 
|  | Oxobacteraceae Chuvochina et al. 2024
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| Eubacteriales | 
|  | Garciellaceae Chuvochina et al. 2024
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|  | Anaerofustaceae Chuvochina et al. 2024
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|  | Alkalibacteraceae Chuvochina et al. 2024
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|  | Eubacteriaceae Ludwig et al. 2010
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| s.s. |  |  
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| Tissierellales | 
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|  | Dethiosulfatibacteraceae Chuvochina et al. 2024
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|  | Sedimentibacteraceae Chuvochina et al. 2024
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|  | "Abyssisolibacteraceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Clostridiisalibacteraceae Chuvochina et al. 2024
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|  | "Senegaliaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Caldisalinibacteraceae Chuvochina et al. 2024
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|  | Thermohalobacteraceae Spring 2021
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|  | "Sporosalibacteriaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Gottschalkiaceae Poehlein et al. 2017c
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|  | Proteiniboraceae Chuvochina et al. 2024
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|  | Acidilutibacteraceae Fan et al. 2023
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|  | Sporanaerobacteraceae Fan et al. 2023
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|  | Tepidimicrobiaceae Fan et al. 2023
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|  | Tissierellaceae Wu et al. 2020
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|  | Peptoniphilaceae Johnson et al. 2014
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| Peptostreptococcales | 
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|  | Caminicellaceae Chuvochina et al. 2024
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|  | Acidaminobacteraceae Chuvochina et al. 2024
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|  | Thermotaleaceae Chuvochina et al. 2024
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|  | Anaerovoracaceae Chuvochina et al. 2024 ["Mogibacteriaceae"]
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|  | "Isachenkoniaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Tindalliaceae Chuvochina et al. 2024
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|  | Natronincolaceae Chuvochina et al. 2024
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| Christensenellales | 
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|  | "Aphodomorphaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Allochristensenellaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Christensenellaceae Morotomi, Nagai & Watanabe 2012
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|  | Gehongia  {NSJ-53}
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|  | Luoshenia  {GCA-900066905}
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|  | "Maliibacteriaceae" Traore et al. 2023
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|  | "Parachristensenellaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Spyradocolaceae" Pallen, Rodriguez-R & Alikhan 202
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|  | Aristaeellaceae Mahoney-Kurpe et al. 2023
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|  | "Ca. Neochristensenella"  {QALW01}
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|  | "Onthoplasmataceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Pumilibacteraceae Afrizal et al. 2024
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|  | "Stercoripulliclostridiaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Faecicolaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Alloclostridiaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Limihabitantaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Borkfalkiaceae" Hildebrand, Pallen & Bork 2020
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| "Merdicolales" | "Merdicolaceae" Pallen, Rodriguez-R & Alikhan 2022
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| "Egerieisomatales" | "Egerieisomataceae" Pallen, Rodriguez-R & Alikhan 2022
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| "Saccharofermentanales" | 
|  | Fastidiosipilaceae Chuvochina et al. 2024 ["Mageeibacillaceae"]
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|  | "Saccharofermentanaceae" corrig. Gilroy et al. 2022
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| Acetivibrionales A | "Thermoclostridiaceae" Pallen, Rodriguez-R & Alikhan 2022
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| Acetivibrionales | 
|  | Acetivibrionaceae Chuvochina et al. 2024
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|  | "Pseudobacteroidaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Anaerobacteriaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Ruminiclostridiaceae" GTDB 2017
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| "Petroclostridiales" | "Petroclostridiaceae" Pallen, Rodriguez-R & Alikhan 2022
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| Monoglobales | Monoglobaceae Chuvochina et al. 2024
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| UMGS1810 | "Qingrenia" {UMGS1810}
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| "Avimonoglobales" | 
|  | "Congzhengia" {UBA9506}
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|  | "Aphodoplasmaceae" (sic) Pallen, Rodriguez-R & Alikhan 2022
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|  | "Avimonoglobaceae" Pallen, Rodriguez-R & Alikhan 2022
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| "Oscillospirales" | 
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|  | "Geddesellaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Woodwardibiaceae" (sic) Pallen, Rodriguez-R & Alikhan 2022
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|  | "Avispirillaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | "Feifaniaceae" Liu et al. 2021 ["Galloscillospiraceae"]
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|  | "Ca. Allobutyricicoccus" {UMGS1384}
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|  | Butyricicoccaceae Chuvochina et al. 2024
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|  | Oscillospiraceae Peshkoff 1940
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|  | "Tabaqchaliaceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Ethanoligenentaceae Chuvochina et al. 2024
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|  | Acutalibacteraceae Chuvochina et al. 2024 ["Yeguiaceae"]
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|  | Ruminococcaceae Rainey 2010
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| Lachnospirales | 
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|  | Anaeropeptidivorans Köller et al. 2022 {UBA5962}
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|  | "Gallispiraceae" Pallen, Rodriguez-R & Alikhan 2022
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|  | Anaerotignaceae Chuvochina et al. 2024
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|  | Defluviitaleaceae Jabari et al. 2012
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|  | Cellulosilyticaceae Dong & Zhou 2023
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|  | Vallitalea okinawensis Sun et al. 2019 {Vallitaleaceae_A}
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|  | "Bianqueaceae" Liu et al. 2021
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|  | "Natranaerovirgaceae" Pallen, Rodriguez-R & Alikhan 2022 ex Sorokin & Merkel 2024
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|  | Vallitaleaceae Quéméneur et al. 2019
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|  | Lachnospiraceae Rainey 2010
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| s.s. |  | 
Unassigned families:[3][11]
- "Betainaceae" Jones et al. 2019
- "Darwinibacteraceae" Puchol-Royo et al. 2023
- "Wallacebacteraceae" Puchol-Royo et al. 2023
 
See also
References
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| 
DomainArchaeaBacteriaEukaryota(major groupsMetamonadaDiscobaDiaphoretickes
Hacrobia
Cryptista
RhizariaAlveolataStramenopilesPlants
Amorphea
AmoebozoaOpisthokonta
AnimalsFungiMesomycetozoea)
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| Candidate Phyla Radiation
 |  | 
|---|
| |  | |  |  | "Synergistetes" |  | 
|---|
 | "Thermocalda" |  | 
|---|
 | 
|---|
 |  | |  |  | "Cyanoprokaryota" | 
Cyanobacteriota
"Margulisiibacteriota"
"Marinamargulisbacteria""Riflemargulisbacteria""Saganbacteria""Termititenacia"
 | 
|---|
 | "Firmicutes" | 
Bacillota
Bacillota A
"Clostridiia""Thermoanaerobacteria"Thermosediminibacteria
Bacillota D
Bacillota E
SulfobacilliaSymbiobacteriiaThermaerobacteria
Bacillota G
"Hydrogenisporia"Limnochordia
"Desulfotomaculota"
"Carboxydocellia""Carboxydothermia""Dehalobacteriia"DesulfitobacteriiaDesulfotomaculia"Moorellia"PeptococciaSyntrophomonadiaThermincolia
"Halanaerobiaeota"
"Selenobacteria"
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| Incertae sedis | 
"Qinglongiota"
"Salinosulfoleibacteria""Teskebacteria"
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| Taxon identifiers | 
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| Eubacteriales |  | 
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