Incertae sedis 58 None 2015 Incertae sedis 58 None 2015 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Firmicutes (sic) Gibbons and Murray 2021 Bacillota corrig. Gibbons and Murray 2021 Firmacutes (sic) Gibbons and Murray 2021 Clostridia Rainey 2010 Clostridiales Prévot 1953 (Approved Lists 1980) Incertae sedis 58 None 2015 Clostridiales Prévot 1953 (Approved Lists 1980) Oscillospiraceae Peshkoff 1940 (Approved Lists 1980) emend. Tindall 2019 Caldicoprobacteraceae Yokoyama et al. 2010 Gracilibacteraceae Lee et al. 2010 Ruminococcaceae Rainey 2010 Christensenellaceae Morotomi et al. 2012 Defluviitaleaceae Jabari et al. 2012 Proteinivoraceae Kevbrin et al. 2014 Incertae sedis 153 None 2015 Symbiobacteriaceae Shiratori-Takano et al. 2014 Peptoniphilaceae Johnson et al. 2014 Peptococcaceae Rogosa 1971 (Approved Lists 1980) emend. Lv et al. 2020 Heliobacteriaceae Asao and Madigan 2010 Incertae sedis 42 None 2015 Incertae sedis 180 None 2015 Mogibacteriaceae None 2015 Veillonellaceae Rogosa 1971 (Approved Lists 1980) emend. Campbell et al. 2015 Syntrophomonadaceae Zhao et al. 1993 emend. Zhang et al. 2019 Peptostreptococcaceae Ezaki 2010 Lachnospiraceae Rainey 2010 Eubacteriaceae Ludwig et al. 2010 Clostridiaceae Pribram 1933 (Approved Lists 1980) emend. Spring 2021 Desulfotomaculaceae Stackebrandt 2020 non Desulfotomaculaceae Watanabe et al. 2020 Incertae sedis 9 Garrity et al. 2007 Incertae sedis 108 Lakhal et al. 2013 Incertae sedis 124 None 2015 Incertae sedis 158 None 2015 Incertae sedis 205 None 2015 Incertae sedis 44 None 2015 Incertae sedis 45 None 2015 Incertae sedis 57 None 2015 Desulfitobacteriaceae Stackebrandt 2020 Thermincolaceae Stackebrandt 2020 Hungateiclostridiaceae Zhang et al. 2018 Vallitaleaceae Quéméneur et al. 2019 Xylanivirgaceae Liu et al. 2020 Betainaceae Jones et al. 2019 Feifaniaceae Liu et al. 2021 Bianqueaceae Liu et al. 2021 Yeguiaceae Liu et al. 2021 Sporanaerobacter Hernandez-Eugenio et al. 2002 Kallipyga Hugon et al. 2016 Sedimentibacter Breitenstein et al. 2002 Micromonas Murdoch and Shah 2000 Hernandez-Eugenio G. Fardeau M.L. Cayol J.L. Patel B.K.C. Thomas P. Macarie H. Garcia J.L. Ollivier B. Sporanaerobacter acetigenes gen. nov., sp. nov., a novel acetogenic, facultatively sulfur-reducing bacterium. 2002 52 4 1217 1223 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.01992-0 12148631 Hugon P. Ramasamy D. Robert C. Couderc C. Raoult D. Fournier P.-E. Non-contiguous finished genome sequence and description of Kallipyga massiliensis gen. nov., sp. nov., a new member of the family Clostridiales Incertae Sedis XI 2013 8 500 515 Standards in Genomic Sciences Stand Genomic Sci 1944-3277 10.4056/sigs.4047997 24501634 Breitenstein A. Wiegel J. Haertig C. Weiss N. Andreesen J.R. Lechner U. Reclassification of Clostridium hydroxybenzoicum as Sedimentibacter hydroxybenzoicus gen. nov., comb. nov., and description of Sedimentibacter saalensis sp. nov. 2002 52 3 801 807 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.01998-0 12054241 Prévot A.R. Hauderoy P. Ehringer G. Guillot G. Magrou. J. Prévot A.R. Rosset D. Urbain A. 1953 2 1 692 Dictionnaire des Bactéries Pathogènes Masson et Cie Paris Murdoch D.A. Shah H.N. Reclassification of Peptostreptococcus magnus (Prevot 1933) Holdeman and Moore 1972 as Finegoldia magna comb. nov. and Peptostreptococcus micros (Prevot 1933) Smith 1957 as Micromonas micros comb. nov. 1999 5 555 559 Anaerobe 1075-9964 1095-8274 10.1006/anae.1999.0197 No reference is available 2015