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