Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Protobranchia Pelseneer, 1889
       Order Solemyida Dall, 1889
         Superfamily Solemyoidea Gray, 1840 [monotypic]
           Family Solemyidae Gray, 1840 - awning clams
             1 Genus Solemya Lamarck, 1818
             2 Genus Acharax Dall, 1908