Kingdom Animalia Linnaeus, 1758 - animals Phylum Cnidaria Hatschek, 1888 - cnidarians Class Anthozoa Ehrenberg, 1831 Subclass Octocorallia Haeckel, 1866 - octocorals see Subclass Alcyonaria Order Helioporacea - helioporaceans Genus Epiphaxum Lonsdale, 1850 Genus Heliopora de Blainville, 1830 - blue coral