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 "Deltaproteobacteria" Garrity et al. 2001 nom. ined.] see Class Deltaproteobacteria Kuever et al. 2006 [Order "Desulfurellales" Garrity et al. 2001 nom. ined.] see Order Desulfurellales Kuever et al. 2006 1 [Family "Desulfurellaceae"ᵀ Garrity et al. 2001 nom. ined.] see Family Desulfurellaceae Kuever et al. 2006