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 Geobacteraceae Holmes et al. 2004 Genus Geopsychrobacter Holmes et al. 2005 [monotypic] Geopsychrobacter electrodiphilusᵀ Holmes et al. 2005