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 Caulobacteralesᵀ Henrici and Johnson 1935 (Approved Lists 1980)
                     Family Hyphomonadaceae Lee et al. 2005
                       Genus Hyphomonasᵀ (ex Pongratz 1957) Moore et al. 1984
                         Hyphomonas johnsonii Weiner et al. 2000