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 Scenedesmaceae Oltmanns
                 Genus Actinastrum Lagerheim (1882)
                 Genus Burkillia W.West & G.S.West (1908)
                 Genus Coelastrum Nägeli (1849)
                 Genus Crucigenia C. Morren (1830)
                 ?Genus Gloeopedia
                 Genus Scenedesmus F.J.F. Meyen (1829)