[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Firmicutes (Gibbons and Murray 1978) Garrity and Holt 2001 stat. inval. see Phylum Bacillota Gibbons and Murray 2021
       Class "Clostridia" "Garrity and Holt 2001" nom. nud. see Class Clostridia Rainey 2010
         Order Clostridiales Prévot 1953 (Approved Lists 1980) see Order Eubacteriales Buchanan 1917 (Approved Lists 1980)
           Family "Acidaminococcaceae" "Garrity and Holt 2001" nom. nud. see Family Acidaminococcaceae Marchandin et al. 2010
             01 Genus Acidaminococcus Rogosa 1969 (Approved Lists 1980)
             02 Genus Acetonema Kane and Breznak 1992
             03 Genus Allisonella Garner et al. 2003 see Genus Dialister (ex Bergey et al. 1923) Moore and Moore 1994
             04 Genus Anaeroarcus Strömpl et al. 1999
             05 Genus Anaeroglobus Carlier et al. 2002 see Genus Megasphaera Rogosa 1971 (Approved Lists 1980)
             06 Genus Anaeromusa Baena et al. 1999
             07 Genus Anaerosinus Strömpl et al. 1999
             08 Genus Anaerovibrio Hungate 1966 (Approved Lists 1980)
             09 Genus Centipeda Lai et al. 1983
             10 Genus Dendrosporobacter Strömpl et al. 2000
             11 Genus Dialister (ex Bergey et al. 1923) Moore and Moore 1994
             12 Genus Megasphaera Rogosa 1971 (Approved Lists 1980)
             13 Genus Mitsuokella Shah and Collins 1983
             14 Genus Papillibacter Defnoun et al. 2000
             15 Genus Pectinatus Lee et al. 1978 (Approved Lists 1980)
             16 Genus Phascolarctobacterium Del Dot et al. 1994
             17 Genus Propionispira Schink et al. 1983
             18 Genus Propionispora Biebl et al. 2001
             19 Genus Quinella Krumholz et al. 1993
             20 Genus Schwartzia van Gylswyk et al. 1997
             21 Genus Selenomonas von Prowazek 1913 (Approved Lists 1980) nom. cons.
             22 Genus Sporomusa Möller et al. 1985
             23 Genus Succiniclasticum van Gylswyk 1995
             24 Genus Succinispira Janssen and O'Farrell 1999
             25 Genus Thermosinus Sokolova et al. 2004
             26 Genus Veillonella Prévot 1933 (Approved Lists 1980)
             27 Genus Zymophilus Schleifer et al. 1990 see Genus Propionispira Schink et al. 1983