[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Chroococcales Ardissone (1887) [paraphyletic] see Order Chroococcales corrig. Ardissone 1887
     Family Microcystaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933
       1 Genus Cyanocomperia Hindák (2001) see Genus Cyanocomperia Hindák 2001
       2 Genus Microcystis Lemmerm. (1907), nom. cons. see Genus Microcystis Kützing ex Lemmermann 1907 nom. cons.
       3 Genus Planctocyanocapsa orth. inval. see Genus Planktocyanocapsa Hindák (2002)
       4 Genus Radiocystis H. Skuja (1948) see Genus Radiocystis Skuja 1948
       5 Genus Sphaerocavum Azevedo & Sant'Anna (2003) see Genus Sphaerocavum Azevedo and Sant'Anna 2003