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 Tetrasporales Lemmermann see Order Chlamydomonadales F.E. Fritsch
               Family Nautococcaceae
                 1 Genus Kremastochloris Pascher (1942)
                 1 Genus Nautocapsa H. Ettl & O. Ettl (1959)
                 1 Genus Nautococcopsis Geitler (1943)
                 1 Genus Nautococcus Korshikov (1926)
                 2 Genus Actinochloris O. Korshikov (1953)
                 2 Genus Apiococcus A. Korshikov (1926)
                 2 Genus Hypnomonas Korshikov (1926)
                 2 Genus Signiosphaera P.A. Broady (1977)
                 3 Genus Chalarodora Pascher (1929)
                 3 Genus Cyanoptyche Pascher (1929)
                 3 Genus Glaucosphaera Korshikov (1930)