Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758 Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795 Clade Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960 Superfamily †Pseudomelanioidea Hoernes, 1884, incertae sedis Family †Trajanellidae Pchelintsev, 1951