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 Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Actinomycetota Goodfellow 2021
                 Class Coriobacteriia König 2013
                   Order Eggerthellales Gupta et al. 2013 [monotypic]
                     Family Eggerthellaceaeᵀ Gupta et al. 2013
                       Genus Gordonibacter Würdemann et al. 2009
                         1 Gordonibacter pamelaeaeᵀ Würdemann et al. 2009
                         2 Gordonibacter urolithinfaciens Selma et al. 2014