Kingdom Protoctista Hogg, 1860
   Phylum Chlorophyta Pascher (1914) - green algae
     Class Chlorophyceae Wille (1884) - chlorophytes
       Order Volvocales Oltmanns (1904) see Order Chlamydomonadales F.E. Fritsch
         Family Volvocaceae Ehrenb. (1834)
           1 Genus Gonium O.F.Müll. (1773)
           2 Genus Pandorina Bory (1824)
           3 Genus Eudorina Ehrenb. (1832)
           4 Genus Platydorina Kofoid (1899)
           5 Genus Pleodorina W.R. Shaw (1894)
           6 Genus Volvulina Playfair (1915)
           7 Genus Volvox L. (1758)