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 Alphaproteobacteria Garrity et al. 2006
                   Order Hyphomicrobiales Douglas 1957 (Approved Lists 1980)
                     Family Hyphomicrobiaceaeᵀ Babudieri 1950 (Approved Lists 1980)
                       1 Genus Dichotomicrobium Hirsch and Hoffmann 1989 [monotypic]
                       2 Genus Filomicrobium Schlesner 1988
                       3 Genus Hyphomicrobiumᵀ Stutzer and Hartleb 1899 (Approved Lists 1980)
                       4 Genus Methyloceanibacter Takeuchi et al. 2014 [monotypic]
                       5 Genus Methyloligella Doronina et al. 2014
                       6 Genus Pedomicrobium Aristovskaya 1961 (Approved Lists 1980)
                       7 Genus Rhodomicrobium Duchow and Douglas 1949 (Approved Lists 1980) [monotypic]
                       8 Genus Seliberia Aristovskaya and Parinkina 1963 (Approved Lists 1980) [monotypic]
                       9 Genus "Candidatus Tectiglobus" Tschitschko et al. 2024 nom. pro-inval.