[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Synechococcales Hoffmann, Komárek & Kaštovský (2005), nom. inval. [paraphyletic] see Order Synechococcales Hoffmann et al. 2005 nom. nud.
     Family Coelosphaeriaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933
       1 Genus Coelomoron Buell (1938) see Genus Coelomoron Buell 1938
       2 Genus Coelosphaeriopsis Lemmerm. (1899) see Genus Coelosphaeriopsis Lemmermann 1899
       3 Genus Coelosphaerium C. Nägeli (1849) see Genus Coelosphaerium Nägeli 1849
       4 Genus Siphonosphaera Hindák (1988) see Genus Siphonosphaera Hindák 1988
       5 Genus Snowella A.A. Elenkin (1938) see Genus Snowella Elenkin 1938
       6 Genus Woronichinia A.A. Elenkin (1933) see Genus Woronichinia Elenkin 1933