Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Synechococcophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval.
     Order "Pseudanabaenales" L. Hoffm., Komárek & Kaštovský (2005), nom. inval. see Order Pseudanabaenales Hoffmann et al. 2005 nom. nud.
       Family Schizotrichaceae Elenkin (1949) see Family Schizotrichaceae Elenkin 1949
         1 Form genus Inactis (Gomont) Kirchner (1898) see Genus Schizothrix Kütz. ex Gomont (1892)
         2 Genus Schizothrix Kütz. ex Gomont (1892) see Genus Schizothrix Kützing ex Gomont 1892
         3 Form genus Trichocoleus Anagn. (2001) see Genus Trichocoleus Anagnostidis 2001