Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Bivalvia Linnaeus, 1758 - bivalves
       1 Subclass Protobranchia Pelseneer, 1889
       2 Subclass Lamellibranchia
       3 Subclass Anomalodesmata Dall, 1889 see Order Anomalodesmata Dall, 1889