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 Nuculanidae Adams & Adams, 1858 (1854) - pointed nut clams
             Subfamily Nuculaninae Adams & Adams, 1858 (1854)
               1 Genus Nuculana Link, 1807
               2 Genus Adrana Adams & Adams, 1858
               3 Genus Mesosaccella Chavan, 1947
               4 Genus Poroleda Tate, 1893
               5 Genus Propeleda Iredale, 1924
               6 Genus Scissuladrana Petuch, 1987
               7 Genus Tenuileda Habe, 1977
               8 Genus Zealeda Marwick, 1924