Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder Pteriomorphia Beurlen, 1944
       Order Arcida Gray, 1854
         Superfamily Limopsoidea Dall, 1895
           1 Family Limopsidae Dall, 1895
           2 Family Philobryidae Bernard, 1897