Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Protobranchia Pelseneer, 1889 Order Nuculida Dall, 1889 Superfamily Nuculanoidea Adams & Adams, 1858 (1854) Family Lametilidae Allen & Sanders, 1973 see Family Phaseolidae Scarlato & Starobogatov, 1971 1 Genus Lametila Allen & Sanders, 1973 2 Genus Prelametila Allen & Sanders, 1973