Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Synechococcophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval.
     Order "Synechococcales" Hoffmann, Komárek & Kaštovský (2005), nom. inval. see Order Synechococcales Hoffmann et al. 2005 nom. nud.
       Family Merismopediaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933
         01 Genus "Aphanocapsa" Nägeli (1849) see Genus Aphanocapsa Nägeli 1849
         02 Form subgenus "Chroococcus subg. Limnococcus" Komárek & Anagn. (1995) see Genus Limnococcus (Komárek & Anagn.) Komárková, Jezberová, O. Komárek & Zapomělová (2010)
         03 Form genus Coccopedia O.V. Troitzkaja (1922) see Genus Coccopedia Troitzkaja 1922
         04 Form genus Coelomoron Buell (1938) see Genus Coelomoron Buell 1938
         05 Form genus Coelosphaerium C. Nägeli (1849) see Genus Coelosphaerium Nägeli 1849
         06 Form genus Coelosphaeriopsis Lemmerm. (1899) see Genus Coelosphaeriopsis Lemmermann 1899
         07 Form genus Cyanotetras F. Hindák (1988) see Genus Cyanotetras Hindák 1988
         08 Form genus Eucapsis F.E. Clements & H.L. Shantz (1909) see Genus Eucapsis Clements and Shantz 1909
         09 Form genus Lithococcus Erceg. (1925) see Genus Lithococcus Ercegović 1925
         10 Form genus Lithomyxa M.A. Howe (1932) see Genus Lithomyxa Howe 1932
         11 Form genus Mantellum P.J.L.Dang. (1949) see Genus Mantellum Dangeard 1949
         12 Genus Merismopedia F.J.F. Meyen (1839) see Genus Merismopedia Meyen 1839
         13 Form genus Paracapsa E. Naumann (1924) see Genus Paracapsa Naumann 1924
         14 Form genus Siphonosphaera Hindák (1988) see Genus Siphonosphaera Hindák 1988
         15 Genus Synechocystis C. Sauvageau (1893) see Genus Synechocystis Sauvageau 1893