Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder Pteriomorphia Beurlen, 1944
       Order Ostreida Férussac, 1822 [monotypic]
         Superfamily Ostreoidea Rafinesque, 1815
           Family Ostreidae Rafinesque, 1815 - true oysters
             1 Subfamily Ostreinae Rafinesque, 1815
             2 Subfamily Crassostreinae Scarlato & Starobogatov, 1979
             3 Subfamily †Flemingostreinae Stenzel, 1971
             4 Subfamily Lophinae Vialov, 1936