Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder Pteriomorphia Beurlen, 1944
       Order Mytilida Férussac, 1822
         Superfamily Mytiloidea Rafinesque, 1815
           Family Mytilidae Rafinesque, 1815 - marine mussels
             1 Subfamily Mytilinae Rafinesque, 1815
             2 Subfamily Bathymodiolinae Kenk & Wilson, 1985
             3 Subfamily Crenellinae Gray, 1840
             4 Subfamily Dacrydiinae Ockelmann, 1983
             5 Subfamily Limnoperninae Scarlato & Starobogatov, 1979
             6 Subfamily Lithophaginae Adams & Adams, 1857 (1854)
             7 Subfamily Modiolinae Termier & Termier, 1950, nom. protect.
             8 Subfamily Septiferinae Scarlato & Starobogatov, 1979