Kingdom Protoctista Hogg, 1860
   Phylum Chlorophyta Pascher (1914) - green algae
     Class Chlorophyceae Wille (1884) - chlorophytes
       Order Chlorococcales Pascher see Order Chlamydomonadales F.E. Fritsch
         Family Coccomyxaceae G.M. Sm.
           1 Genus Coccomyxa W. Schmidle (1901)
           2 Genus Radiococcus Schmidle (1902)
           3 Genus Sphaerocystis R. Chodat (1897)
           4 Genus Gloeocystis C. Nägeli (1849)