Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Gloeobacterophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval. [monotypic]
     1 Order "Gloeobacterales" Caval.-Sm. (2002), nom. inval. [monotypic] see Order Gloeobacterales Cavalier-Smith 2002 nom. inval., nom. rej.