organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     amoeboid protists
       Phylum Heliozoa Haeckel, 1866 see Subphylum Heliozoa Haeckel (1866)
         Order Centrohelida Kühn, 1926
           Family Heterophryidae Poche, 1913
             Genus Sphaerastrum Greeff, 1873