Christensenellaceae Morotomi et al. 2012 Christensenellaceae Morotomi et al. 2012 Christensenella Morotomi et al. 2012 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 Christensenellaceae Morotomi et al. 2012 Eubacteriales Buchanan 1917 (Approved Lists 1980) emend. Tindall 2019 Eubacteriaceae Ludwig et al. 2010 Caldicoprobacteraceae Yokoyama et al. 2010 Clostridiaceae Pribram 1933 (Approved Lists 1980) emend. Spring 2021 Defluviitaleaceae Jabari et al. 2012 Gracilibacteraceae Lee et al. 2010 Heliobacteriaceae Asao and Madigan 2010 Lachnospiraceae Rainey 2010 Peptococcaceae Rogosa 1971 (Approved Lists 1980) emend. Lv et al. 2020 Peptostreptococcaceae Ezaki 2010 Ruminococcaceae Rainey 2010 Syntrophomonadaceae Zhao et al. 1993 emend. Zhang et al. 2019 Eubacteriineae Breed et al. 1944 (Approved Lists 1980) Oscillospiraceae Peshkoff 1940 (Approved Lists 1980) emend. Tindall 2019 Incertae sedis 723 Hitch et al. 2021 Christensenella Morotomi et al. 2012 Luoshenia Liu et al. 2022 Gehongia Liu et al. 2022 Guopingia Liu et al. 2022 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 Morotomi M. Nagai F. Watanabe Y. Description of Christensenella minuta gen. nov., sp. nov., isolated from human faeces, which forms a distinct branch in the order Clostridiales, and proposal of Christensenellaceae fam. nov. 2012 62 1 144 149 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.026989-0 21357455 Liu C. Du M.-X. Abuduaini R. Yu H.-Y. Li D.-H. Wang Y.-J. Zhou N. Jiang M.-Z. Niu P.-X. Han S.-S. Chen H.-H. Shi W.-Y. Wu L. Xin Y.-H. Ma J. Zhou Y. Jiang C.-Y. Liu H.-W. Liu S.-J. Enlightening the taxonomy darkness of human gut microbiomes with a cultured biobank. 2021 9 1 119 119 Microbiome Microbiome 2049-2618 10.1186/s40168-021-01064-3 34020714 Morotomi M. Nagai F. Watanabe Y. Description of Christensenella minuta gen. nov., sp. nov., isolated from human faeces, which forms a distinct branch in the order Clostridiales, and proposal of Christensenellaceae fam. nov. 2012 62 1 144 149 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.026989-0 21357455