#genus_Cardium__Cardium  type genus of the family Cardiidae: cockles
  supertype:  mollusk_genus__molluskgenu  a genus of mollusks
  member:  cockle
  member of:  family_Cardiidae__Cardiidae  somewhat heart-shaped sand-burrowing bivalve mollusks
     member of:  class_Bivalvia__Bivalvia__Lamellibranchia__class_Lamellibranchia__class_Pelecypoda  oysters; clams; scallops; mussels
        member of:  phylum_Mollusca__Mollusca  gastropods; bivalves; cephalopods; chitons
           member of:  kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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