organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: -
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
  Count: 1k;12p;37c;157o;717f;2996g;586s; †2o;1g
     amoeboid protists
    Count: 2p;7c;40o;264f;1038g;3s; †2o
       Phylum Heliozoa Haeckel, 1866 see Subphylum Heliozoa Haeckel (1866)
      Count: -
         Order Centrohelida Kühn, 1926
        Count: [g] 3f;14g
           Family Acanthocystidae Claus, 1874
          Count: [g] 6g
             Genus Pterocystis Siemensma & Roijackers, 1988
            Count: -