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 Acholeplasmatales Freundt et al. 1984 [monotypic]
                     Family Acholeplasmataceaeᵀ Edward and Freundt 1970 (Approved Lists 1980)
                       1 Genus Acholeplasmaᵀ Edward and Freundt 1970 (Approved Lists 1980)
                       2 Candidatus "Phytoplasma" Firrao et al. 2004