Micromonas Murdoch and Shah 2000 Micromonas Murdoch and Shah 2000 Micromonas micros (Prévot 1933) Murdoch and Shah 2000 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 Clostridiales Prévot 1953 (Approved Lists 1980) Incertae sedis 58 None 2015 Micromonas Murdoch and Shah 2000 Incertae sedis 58 None 2015 Sporanaerobacter Hernandez-Eugenio et al. 2002 Kallipyga Hugon et al. 2016 Sedimentibacter Breitenstein et al. 2002 Micromonas micros (Prévot 1933) Murdoch and Shah 2000 Murdoch D.A. Shah H.N. Reclassification of Peptostreptococcus magnus (Prevot 1933) Holdeman and Moore 1972 as Finegoldia magna comb. nov. and Peptostreptococcus micros (Prevot 1933) Smith 1957 as Micromonas micros comb. nov. 1999 5 555 559 Anaerobe 1075-9964 1095-8274 10.1006/anae.1999.0197 Parvimonas Tindall and Euzéby 2006 List Editor Validation List no. 75. Validation of publication of new names and new combinations previously effectively published outside the IJSEM. 2000 50 4 1415 1417 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-50-4-1415 10939643 Tindall B.J. Euzéby J.P. Proposal of Parvimonas gen. nov. and Quatrionicoccus gen. nov. as replacements for the illegitimate, prokaryotic, generic names Micromonas Murdoch and Shah 2000 and Quadricoccus Maszenan et al. 2002, respectively. 2006 56 11 2711 2713 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64338-0 17082417 Murdoch D.A. Shah H.N. Reclassification of Peptostreptococcus magnus (Prevot 1933) Holdeman and Moore 1972 as Finegoldia magna comb. nov. and Peptostreptococcus micros (Prevot 1933) Smith 1957 as Micromonas micros comb. nov. 1999 5 555 559 Anaerobe 1075-9964 1095-8274 10.1006/anae.1999.0197 This name contravenes Rule 51b(4).