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 Stichosiphonaceae Hoffmann, Komárek & Kaštovský (2005), nom. nud. see Family Stichosiphonaceae Hoffmann et al. 2005 nom. nud. Form genus Chamaecalyx Komárek & Anagn. (1986) see Genus Chamaecalyx Komárek and Anagnostidis 1986