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 Tellinoidea Blainville, 1814
           1 Family Tellinidae Blainville, 1814 - tellinids
           2 Family Scrobiculariidae Adams & Adams, 1856 [monotypic] see Subfamily Scrobiculariinae Adams & Adams, 1856
           3 Family Semelidae Stoliczka, 1870 (1825) - semelids
           4 Family Psammobiidae Fleming, 1828 - sunset clams
           5 Family Solecurtidae d'Orbigny, 1846 - razor clams
           6 Family Pharidae Adams & Adams, 1856