Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Gloeobacterophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval. [monotypic]
     Order "Gloeobacterales" Caval.-Sm. (2002), nom. inval. [monotypic] see Order Gloeobacterales Cavalier-Smith 2002 nom. inval., nom. rej.
       1 Family Gloeobacteraceae Komárek & Anagn. (1995), nom. inval. [monotypic] see Family Gloeobacteraceae Komárek and Anagnostidis 1995 nom. inval.