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
             Family Glycymerididae Dall, 1908 (1847) - glycymerids
               Subfamily Glycymeridinae Dall, 1908 (1847)
                 Genus Tucetona Iredale, 1931
                   Subgenus Bellaxinaea Nicol & Jones, 1984