Chordata Bateson, 1885 - chordates Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838 Subclass Selachii see Subdivision Selachii Order Euselachii Hay, 1902 see Infraclass Euselachii Hay, 1902 1 Suborder Galei see Superorder Galeomorphi (Compagno, 1973)