Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Pteriomorphia Beurlen, 1944 see Superorder Pteriomorphia Beurlen, 1944
       Order Arcida Gray, 1854
         Suborder Arcina Stoliczka, 1871 see Order Arcida Gray, 1854
           Superfamily Limopsoidea Dall, 1895
             1 Family Limopsidae Dall, 1895
             2 Family Glycymerididae Dall, 1908 (1847) - glycymerids
             3 Family Phylobryidae orth. inval. see Family Philobryidae Bernard, 1897