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
             Phylum "Candidatus Auribacterota" Williams et al. 2022 nom. nud., incertae sedis
               Class "Candidatus Erginobacteria" Williams et al. 2022 nom. nud. [monotypic]
                 Order "Candidatus Erginobacterales"ᵀ Williams et al. 2022 nom. nud. [monotypic]
                   Family "Candidatus Erginobacteraceae"ᵀ Williams et al. 2022 nom. nud.
                     1 Genus "Candidatus Erginobacter"ᵀ Williams et al. 2022 nom. pro-inval.
                     2 Genus "Candidatus Euphemobacter" Williams et al. 2022 nom. pro-inval.