Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Oscillatoriophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval.
     1 Order Chroococcales Ardissone (1887) see Order Chroococcales corrig. Ardissone 1887
     2 Order Oscillatoriales Schaffner (1922) see Order Oscillatoriales Schaffner 1922