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 Desulfuromonadales corrig. Kuever et al. 2006 Family Desulfuromonadaceaeᵀ corrig. Kuever et al. 2006 Genus Pelobacter Schink and Pfennig 1983 Pelobacter seleniigenes Narasingarao and Häggblom 2007