Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Oscillatoriophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval.
     Order Chroococcales Ardissone (1887) see Order Chroococcales corrig. Ardissone 1887
       Family Entophysalidaceae Geitler (1925) see Family Chroococcaceae Nägeli (1849)
         01 Form genus Chlorogloea N. Wille (1900) see Genus Chlorogloea Wille 1900
         02 Form genus Cyanoarbor Wang (1989) see Genus Cyanoarbor Wang 1989
         03 Form genus Cyanodermatium L. Geitler (1933) see Genus Cyanodermatium Geitler 1933
         04 Form genus Cyanostylon L. Geitler (1928) see Genus Cyanostylon Geitler 1928
         05 Form genus Dzensia N.N. Woronichin (1929) see Genus Dzensia Woronichin 1929
         06 Form genus Entophysalis Kütz. (1843) see Genus Entophysalis Kützing 1843
         07 Form genus Hormathonema A. Ercegović (1929) see Genus Hormathonema Ercegović 1929
         08 Genus Johannesbaptistia G. De Toni (1934) see Genus Johannesbaptistia De Toni 1934
         09 Form genus Lithocapsa A. Ercegović (1925) see Genus Lithocapsa Ercegović 1925
         10 Form genus Placoma P.K.A. Schousboe ex Bornet & G. Thuret (1876), nom. illeg. see Genus Cyanoplacoma E.A. Molinari-Novoa & M.D. Guiry (2021)
         11 Form genus Siphononema L. Geitler (1925) see Genus Siphononema Geitler 1925
         12 Form genus Tryponema A. Ercegović (1929) see Genus Tryponema Ercegović 1929