[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class "Clostridia" Garrity et al. 2001 nom. ined. see Class Clostridia Rainey 2010
         Order Clostridiales Prévot 1953 (Approved Lists 1980)
           Family "Eubacteriaceae" nom. inval. see Family Eubacteriaceae Ludwig et al. 2010
             1 Genus Eubacterium Prévot 1938 (Approved Lists 1980)
             2 Genus Acetobacterium Balch et al. 1977 (Approved Lists 1980)
             3 Genus Alkalibacter Garnova et al. 2005
             4 Genus Anaerofustis Finegold et al. 2004
             5 Genus Anaerovorax Matthies et al. 2000
             6 Genus Mogibacterium Nakazawa et al. 2000
             7 Genus Pseudoramibacter Willems and Collins 1996