Class Cephalopoda Cuvier, 1795 - cephalopods Subclass Coleoidea Bather, 1888 Superorder Decembrachiata Winckworth, 1932 see Superorder Decapodiformes Young, Vecchione & Donovan, 1998 Order Spirulida Pompeckj, 1912 1 Suborder †Groenlandibelida Khromov, 1990 2 Suborder †Belopterina Engeser, 1998 3 Suborder Spirulina Pompeckj, 1912