Romboutsia ilealis Gerritsen et al. 2014 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 Romboutsia Gerritsen et al. 2014 emend. Wang et al. 2015 Romboutsia ilealis Gerritsen et al. 2014 Romboutsia Gerritsen et al. 2014 emend. Wang et al. 2015 Romboutsia lituseburensis (LaPlanche and Saissac 1948) Gerritsen et al. 2014 Romboutsia sedimentorum Wang et al. 2015 Romboutsia hominis Gerritsen et al. 2018 Romboutsia faecis Liu et al. 2022 Romboutsia ilealis Gerritsen et al. 2014 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 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