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 Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               [Phylum Cyanobacteria Garcia-Pichel et al. (2020)] see Phylum Cyanobacteriota Oren et al. 2022
                 [Class Cyanophyceae Hauck (1885)] see Class Chroococcophyceae Hollerbach et al. 1953
                   [Order Chroococcales Ardissone (1887)] see Order Chroococcales corrig. Ardissone 1887
                     [Family Microcystaceae Elenkin (1933), sedis mutabilis] see Family Microcystaceae Elenkin 1933
                       ?[Genus Coelosphaerium C. Nägeli (1849)] see Genus Coelosphaerium Nägeli 1849
                         Coelosphaerium aerugineum Lemmermann 1898
                         Coelosphaerium dubium A. Grunow in L. Rabenhorst 1865
                         Coelosphaerium kuetzingianum Nägeli 1849
                         Coelosphaerium limnicolum Lund 1942
                         Coelosphaerium minutissimum Lemmermann 1900
                         Coelosphaerium punctiferum Komárek and Komárková-Legnerová 1992