Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Bacillotaᵀ Gibbons and Murray 2021
                 Class Negativicutes Marchandin et al. 2010
                   Order Acidaminococcales Campbell et al. 2015 [monotypic]
                     Family Acidaminococcaceaeᵀ Marchandin et al. 2010
                       1 Genus Acidaminococcusᵀ Rogosa 1969 (Approved Lists 1980)
                       2 Genus Phascolarctobacterium Del Dot et al. 1994
                       3 Genus Succiniclasticum van Gylswyk 1995 [monotypic]
                       4 Genus Succinispira Janssen and O'Farrell 1999 [monotypic]
                       5 Genus "Candidatus Avacidaminococcus" Gilroy et al. 2022