living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Chlorophycota see Phylum Chlorophyta Pascher (1914)
           Class Chlorophyceae Wille (1884) - chlorophytes
             Order Chlorococcales Pascher see Order Chlamydomonadales F.E. Fritsch
               Family Micractiniaceae G.M. Sm.
                 Genus Acanthosphaera Lemmermann (1899)
                 Genus Errerella W. Conrad (1913) see Genus Micractinium Fresenius (1858)
                 Genus Golenkinia R. Chodat (1894)
                 Genus Golenkiniopsis O. Korshikov (1953)
                 Genus Micractinium Fresenius (1858)
                 ?Genus Phythelios Frenzel (1891)
                 Genus Polyedriopsis W. Schmidle (1899)