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 †Actinoceratoidea Teichert et al., 1964 Genus †Huronia Stokes, 1824