Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758 Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795 Family †Sinuopeidae Wenz, 1938 1 Subfamily †Sinuopeinae Wenz, 1938 2 Subfamily †Platyschismatinae Knight, 1956 3 Subfamily †Turbonellininae Knight, 1956