[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Pleurocapsales Geitler (1925) see Order Chroococcales Ardissone (1887)
     Family Hyellaceae Borzì (1914) see Family Hydrococcaceae Kützing (1843)
       Genus Chroococcidium L. Geitler (1933) see Genus Chroococcidium Geitler 1933