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 Desulfuromonasᵀ Pfennig and Biebl 1977 (Approved Lists 1980) Desulfuromonas acetexigens Finster et al. 1997