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 "Deltaproteobacteria" Kuever et al., 2006 [polyphyletic] Class Deltaproteobacteriaᵀ Kuever et al. 2006 Order Bdellovibrionales Garrity et al. 2006 Family Bdellovibrionaceaeᵀ Garrity et al. 2006 1 Genus Bdellovibrioᵀ Stolp and Starr 1963 (Approved Lists 1980) 2 Genus Micavibrio Lambina et al. 1989 [monotypic] 3 Genus Vampirovibrio Gromov and Mamkayeva 1980 [monotypic]