Faecalibacillus faecis Seo et al. 2019 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 Erysipelotrichia (Ludwig et al. 2009) Ludwig et al. 2010 Erysipelotrichales Ludwig et al. 2010 Erysipelotrichaceae Verbarg et al. 2004 emend. Tegtmeier et al. 2016 Faecalibacillus Seo et al. 2019 Faecalibacillus faecis Seo et al. 2019 Faecalibacillus Seo et al. 2019 Faecalibacillus intestinalis Seo et al. 2019 Faecalibacillus faecis Seo et al. 2019 Seo B. Jeon K. Baek I. Lee Y.M. Baek K. Ko G. Faecalibacillus intestinalis gen. nov., sp. nov. and Faecalibacillus faecis sp. nov., isolated from human faeces. 2019 69 7 2120 2128 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003443 31099736 Seo B. Jeon K. Baek I. Lee Y.M. Baek K. Ko G. Faecalibacillus intestinalis gen. nov., sp. nov. and Faecalibacillus faecis sp. nov., isolated from human faeces. 2019 69 7 2120 2128 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003443 31099736