Phylum Mollusca Linnaeus, 1758 - molluscs Class Cephalopoda Cuvier, 1795 - cephalopods Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888 Order Belemnitida Gray, 1849 Superfamily Belemnitoidea 1 Family Belemnitidae d'Orbigny, 1845