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 [Class "Betaproteobacteria" Garrity et al. 2001 nom. ined.] see Class Betaproteobacteria Garrity et al. 2006 1 [Order "Burkholderiales"] see Order Burkholderiales Garrity et al. 2006 2 [Order "Hydrogenophilales" nom. inval.] see Order Hydrogenophilales Garrity et al. 2006 3 [Order "Methylophilales" nom. inval.] see Order Methylophilales Garrity et al. 2006 4 [Order "Neisseriales"] see Order Neisseriales Tønjum 2006 5 [Order "Nitrosomonadales"] see Order Nitrosomonadales Garrity et al. 2006 5.0 [Order Spirillales Prévot 1940 (Approved Lists 1980)] see Order Nitrosomonadales 6 [Order "Rhodocyclales"] see Order Rhodocyclales Garrity et al. 2006