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 Desulfobacterales Kuever et al. 2006
                   Family Desulfobacteraceaeᵀ Kuever et al. 2006
                     Genus Desulfobacterium Bak and Widdel 1988
                       1 Desulfobacterium autotrophicum Brysch et al. 1988
                       2 Desulfobacterium catecholicum Szewzyk and Pfennig 1988
                       3 Desulfobacterium indolicum Bak and Widdel 1988
                       4 Desulfobacterium niacini Kuever et al. 2006
                       5 Desulfobacterium vacuolatum Kuever et al. 2006