Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Chamida see Order Venerida Gray, 1854
         Superfamily Solenoidea Lamarck, 1809
           1 Family Solenidae Lamarck, 1809 - razor clams
           2 Family Cultellidae Davies, 1935 see Subfamily Cultellinae Davies, 1935