Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes Subclass Synechococcophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval. Order "Synechococcales" Hoffmann, Komárek & Kaštovský (2005), nom. inval. see Order Synechococcales Hoffmann et al. 2005 nom. nud. Family Merismopediaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933 Form genus Eucapsis F.E. Clements & H.L. Shantz (1909) see Genus Eucapsis Clements and Shantz 1909