Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758 Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910 Subdivision Bilateralia Phylum Echinodermata Bruguière, 1789 - echinoderms Class Asteroidea Blainville, 1830 - sea stars Subclass Somasteroidea Spencer, 1951 see Order Platyasterida Spencer, 1951 Family Platasteridae