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
         Genus Snowella A.A. Elenkin (1938) see Genus Snowella Elenkin 1938