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