Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Order Squatiniformes Buen, 1926 - angel sharks Family Squatinidae Bonaparte, 1838 - angel sharks Genus Squatina Duméril, 1806 Squatina aculeata Duméril, 1829 - sawback angelshark Squatina oculata Bonaparte, 1840 - monk fish Squatina squatina (C. Linnaeus, 1758) - angel shark