Kingdom Animalia Linnaeus, 1758 - animals Phylum Mollusca Linnaeus, 1758 - molluscs Subphylum Diasoma Runnegar & Pojeta Jr., 1974 see Phylum Mollusca Linnaeus, 1758 Class Pelecypoda Goldfuss, 1820 see Class Bivalvia Linnaeus, 1758 Subclass Palaeotaxodonta Korobkov, 1954 see Subclass Protobranchia Pelseneer, 1889 Genus Nucula Lamarck, 1799