Kingdom Protoctista Hogg, 1860
   Phylum Chlorophyta Pascher (1914) - green algae
     Class Chlorophyceae Wille (1884) - chlorophytes
       Order Tetrasporales Lemmermann see Order Chlamydomonadales F.E. Fritsch
         Family Characiochloridaceae Skuja
           1 Genus Characiochloris A. Pascher (1927)
           2 Genus Chlorangiella G.B. De Toni (1889)
           3 Genus Chlorangiopsis A.A. Korshikov (1932)
           4 Genus Pseudochlorangium Hindák
           5 Genus Stylosphaeridium Geitler & Gimesi (1925)