Kingdom Animalia Linnaeus, 1758 - animals Phylum Mollusca Linnaeus, 1758 - molluscs Subphylum Cyrtosoma Runnegar & Pojeta Jr., 1974 see Phylum Mollusca Linnaeus, 1758 Class Cephalopoda Cuvier, 1795 - cephalopods Subclass Coleoidea Bather, 1888 Order †Belemnitida Gray, 1849 Genus †Belemnites Gesner, 1758