Kingdom Animalia Linnaeus, 1758 - animals Phylum Echinodermata Bruguière, 1789 - echinoderms Subphylum Eleutherozoa Bell, 1891 Class Asteroidea Blainville, 1830 - sea stars Order Forcipulatida Perrier, 1884 Family Asteriidae Gray, 1840 1 Genus Pisaster Müller & Troschel, 1840