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 Pseudomonadalesᵀ Orla-Jensen 1921 (Approved Lists 1980)
                     [Family "Siderocapsaceae" Pribram 1929 nom. inval.]
                       [Genus "Ferribacterium" Brussoff 1916 nom. inval.]
                       [Genus Neumanniella]
                       [Genus Ochrobium]
                       1 [Genus "Didymohelix" Griffith 1853 nom. inval.]
                       2 [Genus "Siderocapsa"ᵀ Molisch 1910 nom. inval.]
                       3 [Genus "Siderococcus" Dorff 1934 nom. inval.]
                       4 [Genus "Siderosphaera" Beger 1949 nom. inval.]
                       pe [Genus "Ferrobacillus" Leathen and Braley 1954 nom. inval.]
                       pe [Genus "Naumanniella" Dorff 1934 nom. inval.]
                       pe [Genus "Siderobacter" Naumann 1921 nom. inval.]
                       pe [Genus "Sideromonas" Cholodny 1922 nom. inval.]