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 "Pseudanabaenales" L. Hoffm., Komárek & Kaštovský (2005), nom. inval.] see Order Pseudanabaenales Hoffmann et al. 2005 nom. nud.
                     [Family Pseudanabaenaceaeᵀ Anagn. & Komárek (1988)] see Family Pseudanabaenaceae Anagnostidis and Komárek 1988
                       [Genus Pseudanabaenaᵀ R. Lauterborn (1915) [polyphyletic]] see Genus Pseudanabaena Lauterborn 1915
                         Pseudanabaena catenata Lauterborn 1915
                         Pseudanabaena curta (M.M. Hollerbach) G. Cronberg and J. Komárek 1994
                         Pseudanabaena galeata Böcher 1949
                         Pseudanabaena limnetica (E. Lemmermann) J. Komárek 1974
                         Subgenus Pseudanabaena subg. Pseudanabaenaᵀ
                         Pseudanabaena tenuis F. Koppe 1924 [ICBN]