Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Order Arcoida see Order Pteriomorpha Beurlen, 1944
       1 Superfamily Arcacea see Superfamily Arcoidea Lamarck, 1809
       2 Superfamily Limopsacea Dall, 1895, nom. illeg. see Superfamily Limopsoidea Dall, 1895