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?]
             [Phylum "Proteobacteria" Garrity and Holt 2001] see Phylum Proteobacteria Garrity et al. 2005
               ["Gamma Group"] see Class Gammaproteobacteria Garrity et al. 2005
                 1 ["Enterics"] see Class Gammaproteobacteria nom. inval.
                 2 ["Methylomonads"] see Order Methylococcales nom. inval.