Kingdom Animalia Linnaeus, 1758 - animals Phylum Echinodermata Bruguière, 1789 - echinoderms Class Rhombifera Pérès, 1956 1 Order †Hillocystida Jell, 1983 2 Order †Fistuliporida 3 Order †Pleurocystitida Jell, 1983 4 Order Dichoporita Jaeckel, 1899