Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Protobranchia Pelseneer, 1889
       Order Nuculida Dall, 1889
         Superfamily Nuculanoidea Adams & Adams, 1858 (1854)
           Family Radiidentidae Egorova & Starobogatov, 1975, nom. illeg. [monotypic] see Family Siliculidae Allen & Sanders, 1973
             1 Genus Radiidens Egorova & Starobogatov, 1975, nom. illeg. see Genus Silicula Jeffreys, 1879