Kingdom Protoctista Hogg, 1860
   Phylum Chlorophyta Pascher (1914) - green algae
     Class Chlorophyceae Wille (1884) - chlorophytes
       Order Chlamydomonadales F.E. Fritsch
         Family Chlamydomonadaceae F. Stein (1878)
           1 Genus Chlamydomonas Ehrenb. (1834)
           2 Genus Chlorogonium Ehrenb. (1836)
           3 Genus Chloromonas C. Gobi (1899), nom. cons.
           4 Genus Lobomonas P.A. Dangeard (1898)
           5 Genus Brachiomonas Bohlin, 1897[1898]
           6 Genus Polytoma Ehrenberg (1838)
           7 Genus Polytomella Aragão (1910)
           8 Genus Spermatozopsis O.A. Korshikov (1913)