Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Echinodermata Bruguière, 1789 - echinoderms
     1 Subphylum Crinozoa Matsumoto, 1929 see Infraphylum Crinozoa Matsumoto, 1929
     2 Subphylum †Blastozoa Sprinkle, 1973 see Infraphylum Blastozoa Sprinkle, 1973
     3 Subphylum Asterozoa von Zittel, 1895 see Infraphylum Asterozoa von Zittel, 1895
     4 Subphylum †Homalozoa Whitehouse, 1941
     5 Subphylum Echinozoa von Zittel, 1895 see Infraphylum Echinozoa Haeckel, in Von Zittell, 1895