Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Cnidaria Hatschek, 1888 - cnidarians
     Class Anthozoa Ehrenberg, 1831
       Subclass Hexacorallia Haeckel, 1866 - sea anemones and true corals see Subclass Zoantharia de Blainville, 1830
         1 Order Actiniaria - sea anemones
         2 Order Scleractinia Bourne, 1900
         3 Order Zoanthidea
         4 Order Corallimorpharia