Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Cnidaria Hatschek, 1888 - cnidarians
     Class Anthozoa Ehrenberg, 1831
       Subclass Zoantharia de Blainville, 1830
         1 Order Zoanthiniaria see Order Zoanthidea
         1.n.1 Order †Cothoniida
         1.n.2 Order †Tabulata (Milne-Edwards & Haime, 1850)
         1.n.2.n.1 Order †Heliolitida Frech, 1897
         1.n.2.n.2 Order †Rugosa Milne-Edwards & Haime, 1850
         1.n.2.n.2.n Order †Heterocorallia Schindewolf, 1941
         2 Order Actiniaria - sea anemones
         2.n Order Corallimorpharia
         2.n.n Order Scleractinia Bourne, 1900