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. 1990 stat. inval. [paraphyletic?]] see Domain Bacteria Woese et al. 2024
             [Phylum "Proteobacteria" Garrity and Holt 2001 nom. nud.] see Phylum Proteobacteria Garrity et al. 2005 stat. inval.
               [Class "Betaproteobacteria" "Garrity and Holt 2001" nom. nud.] see Class Betaproteobacteria Garrity et al. 2006
                 1 [Order "Burkholderiales" "Garrity and Holt 2001" nom. nud.] see Order Burkholderiales Garrity et al. 2006
                 2 [Order "Hydrogenophilales" "Garrity and Holt 2001" nom. nud.] see Order Hydrogenophilales Garrity et al. 2006
                 3 [Order "Methylophilales" "Garrity and Holt 2001" nom. nud.] see Order Methylophilales Garrity et al. 2006
                 4 [Order "Neisseriales" "Garrity and Holt 2001" nom. nud.] see Order Neisseriales Tønjum 2006
                 5 [Order "Nitrosomonadales" "Garrity and Holt 2001" nom. nud.] see Order Nitrosomonadales Garrity et al. 2006 nom. illeg.
                 6 [Order "Rhodocyclales" "Garrity and Holt 2001" nom. nud.] see Order Rhodocyclales Garrity et al. 2006