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
               01 Family Coccomyxaceae G.M. Sm.
               02 Family Chlorococcaceae Blackman & Tansley
               03 Family Rhodochytriaceae see Family Chlorochytriaceae
               04 Family Dicranochaetaceae see Family Chaetochloridaceae
               05 Family Micractiniaceae G.M. Sm.
               06 Family Hydrodictyaceae Dumort.
               07 Family Protosiphonaceae Blackman & Tansley
               08 Family Characiosiphonaceae Iyengar
               09 Family Hormotilaceae Korshikov
               10 Family Palmodictyaceae see Family Radiococcaceae Fott ex P.C.Silva
               11 Family Oocystaceae Bohlin
               12 Family Eremosphaeraceae
               13 Family Treubariaceae (Korshikov) Fott
               14 Family Dictyosphaeriaceae G.S.West
               15 Family Heleochloridaceae Fott (1974)
               16 Family Scenedesmaceae Oltmanns