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 Microcystaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933 Form genus Sphaerocavum Azevedo & Sant'Anna (2003) see Genus Sphaerocavum Azevedo and Sant'Anna 2003