Clostridioides difficile (Hall and O'Toole 1935) Lawson et al. 2016 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 Clostridioides Lawson et al. 2016 Clostridioides difficile (Hall and O'Toole 1935) Lawson et al. 2016 Clostridioides Lawson et al. 2016 Clostridioides mangenotii (Prévot and Zimmès-Chaverou 1947) Lawson et al. 2016 Clostridium difficile (Hall and O'Toole 1935) Prévot 1938 (Approved Lists 1980) Clostridioides difficile (Hall and O'Toole 1935) Lawson et al. 2016 Peptoclostridium difficile (Hall and O'Toole 1935) Yutin and Galperin 2013 Lawson P.A. Citron D.M. Tyrrell K.L. Finegold S.M. Reclassification of Clostridium difficile as Clostridioides difficile (Hall and O’Toole 1935) Prévot 1938). 2016 40 95 99 Anaerobe 1075-9964 1095-8274 10.1016/j.anaerobe.2016.06.008 27370902 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 Lawson P.A. Citron D.M. Tyrrell K.L. Finegold S.M. Reclassification of Clostridium difficile as Clostridioides difficile (Hall and O’Toole 1935) Prévot 1938). 2016 40 95 99 Anaerobe 1075-9964 1095-8274 10.1016/j.anaerobe.2016.06.008 27370902