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 Gomphosphaeriaceae Elenkin (1933) see Family Gomphosphaeriaceae Elenkin 1933
         1 Form genus Gomphosphaeria Kütz. (1836) see Genus Gomphosphaeria Kützing 1836
         2 Genus Snowella A.A. Elenkin (1938) see Genus Snowella Elenkin 1938
         3 Genus Woronichinia A.A. Elenkin (1933) see Genus Woronichinia Elenkin 1933