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 Chamoidea Lamarck, 1809 [monotypic]
           Family Chamidae Lamarck, 1809 - jewel boxes
             Genus Pseudochama Odhner, 1917
               1 Subgenus Eopseuma Odhner, 1919