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 Holosporales Szokoli et al. 2020
                     Family Holosporaceaeᵀ Görtz and Schmidt 2006
                       Genus Holosporaᵀ (ex Hafkine 1890) Gromov and Ossipov 1981
                         1 Holospora caryophila (ex Preer et al. 1974) Preer and Preer 1982
                         2 Holospora elegans (ex Hafkine 1890) Preer and Preer 1982
                         3 Holospora obtusa (ex Hafkine 1890) Gromov and Ossipov 1981
                         4 Holospora undulata (ex Hafkine 1890) Gromov and Ossipov 1981