[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Synechococcales Hoffmann, Komárek & Kaštovský (2005), nom. inval. [paraphyletic] see Order Synechococcales Hoffmann et al. 2005 nom. nud.
     Family Merismopediaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933
       Genus Synechocystis C. Sauvageau (1893) see Genus Synechocystis Sauvageau 1893