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 Mollicutes Edward and Freundt 1967 (Approved Lists 1980)
                   Order Anaeroplasmatales Robinson and Freundt 1987 [monotypic]
                     Family Anaeroplasmataceaeᵀ Robinson and Freundt 1987
                       Genus Anaeroplasmaᵀ Robinson et al. 1975 (Approved Lists 1980)
                         1 Anaeroplasma abactoclasticum Robinson et al. 1975 (Approved Lists 1980)
                         2 Anaeroplasma bactoclasticum (Robinson and Hungate 1973) Robinson and Allison 1975 (Approved Lists 1980)
                         3 Anaeroplasma intermedium Robinson and Freundt 1987
                         4 Anaeroplasma varium Robinson and Freundt 1987