Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Pseudomonadotaᵀ Garrity et al. 2021
                 Class Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Nevskiales Naushad et al. 2015
                     Family Steroidobacteraceae Liu et al. 2019
                       1 Genus Povalibacter Nogi et al. 2014 [monotypic]
                       2 Genus Steroidobacterᵀ Fahrbach et al. 2008 [monotypic]