Peptoclostridium irregulare (Choukévitch 1911) Yutin and Galperin 2013 Peptoclostridium irregulare (Choukévitch 1911) Yutin and Galperin 2013 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 Eubacteriales Buchanan 1917 (Approved Lists 1980) emend. Tindall 2019 Peptostreptococcaceae Ezaki 2010 Peptoclostridium Yutin and Galperin 2013 non Peptoclostridium Galperin et al. 2016 Peptoclostridium irregulare (Choukévitch 1911) Yutin and Galperin 2013 Peptoclostridium Yutin and Galperin 2013 non Peptoclostridium Galperin et al. 2016 Peptoclostridium difficile (Hall and O'Toole 1935) Yutin and Galperin 2013 Peptoclostridium bartlettii (Song et al. 2004) Yutin and Galperin 2013 Peptoclostridium bifermentans (Weinberg and Séguin 1918) Yutin and Galperin 2013 Peptoclostridium ghonii (Prévot 1938) Yutin and Galperin 2013 Peptoclostridium glycolicum (Gaston and Stadtman 1963) Yutin and Galperin 2013 Peptoclostridium hiranonis (Kitahara et al. 2001) Yutin and Galperin 2013 Peptoclostridium litorale (Fendrich et al. 1991) Galperin et al. 2016 Peptoclostridium lituseburense (LaPlanche and Saissac 1948) Yutin and Galperin 2013 Peptoclostridium mangenotii (Prévot and Zimmès-Chaverou 1947) Yutin and Galperin 2013 Peptoclostridium mayombei (Kane et al. 1992) Yutin and Galperin 2013 Peptoclostridium paradoxum (Li et al. 1993) Yutin and Galperin 2013 Peptoclostridium sordellii (Hall and Scott 1927) Yutin and Galperin 2013 Peptoclostridium sticklandii (Stadtman and McClung 1957) Yutin and Galperin 2013 Peptoclostridium thermoalcaliphilum (Li et al. 1994) Yutin and Galperin 2013 Peptoclostridium tenue (Bergey et al. 1923) Yutin and Galperin 2013 Peptoclostridium yurii (Margaret and Krywolap 1986) Yutin and Galperin 2013 Asaccharospora irregularis (Choukévitch 1911) Gerritsen et al. 2014 Peptoclostridium irregulare (Choukévitch 1911) Yutin and Galperin 2013 Clostridium irregularis (sic) (Choukévitch 1911) Prévot 1938 (Approved Lists 1980) Clostridium irregulare corrig. (Choukévitch 1911) Prévot 1938 (Approved Lists 1980) Gerritsen J. Fuentes S. Grievink W. van Niftrik L. Tindall B.J. Timmerman H.M. Rijkers G.T. Smidt H. Characterization of Romboutsia ilealis gen. nov., sp. nov., isolated from the gastro-intestinal tract of a rat, and proposal for the reclassification of five closely related members of the genus Clostridium into the genera Romboutsia gen. nov., Intestinibacter gen. nov., Terrisporobacter gen. nov. and Asaccharospora gen. nov. 2014 64 5 1600 1616 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.059543-0 24480908 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225 Kitahara M. Takamine F. Imamura T. Benno Y. Clostridium hiranonis sp. nov., a human intestinal bacterium with bile acid 7alpha-dehydroxylating activity. 2001 51 1 39 44 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-1-39 11211270 Yutin N. Galperin M.Y. A genomic update on clostridial phylogeny: Gram-negative spore formers and other misplaced clostridia. 2013 15 10 2631 2641 Environmental Microbiology Environ Microbiol 1462-2912 1462-2920 10.1111/1462-2920.12173 23834245 Clostridium irregulare corrig. (Choukévitch 1911) Prévot 1938 (Approved Lists 1980) Yutin N. Galperin M.Y. A genomic update on clostridial phylogeny: Gram-negative spore formers and other misplaced clostridia. 2013 15 10 2631 2641 Environmental Microbiology Environ Microbiol 1462-2912 1462-2920 10.1111/1462-2920.12173 23834245 Yutin and Galperin 2013 did not formally propose this new combination.