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 Micractiniaceae G.M. Sm.
           1 Genus Micractinium Fresenius (1858)
           2 Genus Golenkinia R. Chodat (1894)
           3 Genus Golenkiniopsis O. Korshikov (1953)