Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
                 Class Clostridia Rainey 2010
                   Order Clostridialesᵀ Prévot 1953 (Approved Lists 1980)
                     Family Eubacteriaceae Ludwig et al. 2010
                       Genus Aminicella corrig. Ueki et al. 2015
                       1 Genus Garciella Miranda-Tello et al. 2003 [monotypic]
                       2 Genus Eubacteriumᵀ Prévot 1938 (Approved Lists 1980)
                       3 Genus Acetobacterium Balch et al. 1977 (Approved Lists 1980)
                       4 Genus Alkalibacter Garnova et al. 2005 [monotypic]
                       5 Genus Alkalibaculum Allen et al. 2010 [monotypic]
                       6 Genus Anaerofustis Finegold et al. 2004 [monotypic]
                       7 Genus Pseudoramibacter Willems and Collins 1996 [monotypic]