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 Gomontiellales Strunecký & Mareš (2023), sedis mutabilis] see Order Gomontiellales Strunecký and Mareš 2023
                     [Family Chamaesiphonaceae Borzì (1878)] see Family Chamaesiphonaceae Borzì 1878
                       1 ?[Genus Clastidium O. Kirchner (1880)] see Genus Clastidium Kirchner 1880
                       2 ?[Genus Cyanophanon L. Geitler (1955)] see Genus Cyanophanon Geitler 1955
                       3 ?[Genus Godlewskia Janczewski (1883)] see Genus Chamaesiphon A.Braun (1864)
                       4 ?[Genus Pascherinema G.De Toni (1936)] see Genus Endonema Pascher 1929
                       5 ?[Genus Stichosiphon L. Geitler (1931)] see Genus Stichosiphon Geitler 1931
                       6 [Genus Chamaesiphonᵀ A.Braun (1864)] see Genus Chamaesiphon Braun 1864
                       6.0 [Genus Chamaesiphonopsis F.E. Fritsch (1929)] see Genus Chamaesiphon Braun 1864