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 Halobacteriovoraceae Koval et al. 2015 [monotypic] Family Pseudobacteriovoracaceae McCauley et al. 2015 [monotypic] 1 Family Bdellovibrionaceaeᵀ Garrity et al. 2006 2 Family Bacteriovoracaceae Davidov and Jurkevitch 2004