life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925
     Superkingdom Metakaryota see Domain Eukaryota Chatton, 1925
       Kingdom Protozoa Goldfuss, 1818 - protozoa
         Subkingdom Dictyozoa Cavalier-Smith, 1991
           Branch Bikonta Cavalier-Smith, 1993
             Infrakingdom Neozoa Cavalier-Smith, 1993
               Parvkingdom Actinopoda Calkins, 1902
                 Phylum Heliozoa Haeckel, 1866 see Subphylum Heliozoa Haeckel (1866)
                   1 Class Nucleohelea Cavalier-Smith, 1993 see Class Raphidophyceae Chadef. ex P.C.Silva (1980)
                   2 Class Centrohelea Kühn, 1926