CLASS BIVALVIA

Subclass Paleotaxodonta

• Order Nuculoida
• Superfamily Nuculoidea
  • Nuculidae
• Superfamily Nuculanoidea
  • Nuculanidae
  • Malletiidae
  • Tindariidae

Subclass Cryptodonta

• Order Solemyoida
• Superfamily Solemyoidea
  • Solemyidae

Subclass Pteriomorphia

• Superorder Isofilibranchia
  • Order Mytiloida
    • Superfamily Mytiloidea
      • Mytilidae
• Superorder Prionodonta
• Order Arcoida
• Superfamily Arcoidea
  • Arcidae
  • Cucullaeidae
  • Noetiidae
  • Parallelodontidae
• Superfamily Limopsoidea
  • Limopsidae
  • Glycymerididae
  • Philobryidae
• Superorder Eupteriomorphia
  • Order Pterioida
    • Superfamily Pterioidea
      • Pteriidae
      • Malleidae
      • Isognomonidae
    • Superfamily Pinnoidea
      • Pinnidae
  • Order Limoida
    • Superfamily Limoidea
      • Limidae
  • Order Ostreoida
    • Suborder Ostreina
      • Superfamily Ostreoidea
        • Ostreidae
        • Gryphaeidae
      • Superfamily Dimyoidea
        • Dimyidae
      • Superfamily Plicatuloidea
        • Plicatulidae
    • Suborder Pectinina
    • Superfamily Anomioidea
      • Anomiidae
      • Placunidae
    • Superfamily Pectinoidea
      • Pectinidae
      • Propeamussiidae
      • Spondylidae

Subclass Paleoheterodonta

• Order Trigonioida
  • Superfamily Trigonioidea
    • Trigoniidae

Subclass Heterodonta

• Order Veneroida
  • Superfamily Lucinoidea
    • Lucinidae
    • Fimbriidae
    • Thyasiridae
    • Ungulinidae
  • Superfamily Cyamioidea
    • Cyamiidae
    • Gaimardiidae
  • Superfamily Galeommatoidea
    • Galeommatidae
    • Lasaeidae
    • Montacutidae
  • Superfamily Carditoidea
    • Carditidae
  • Superfamily Chamoidea
    • Chamidae
  • Superfamily Crassatelloidea
    • Crassatellidae
    • Astartidae
  • Superfamily Cardioidea
    • Cardiidae
    • Hemidonacidae
    • Tridacnidae
  • Superfamily Mactroidea
    • Mactridae
    • Mesodesmatidae
    • Cardiliidae
    • Anatinellidae
  • Superfamily Solenoidea
    • Solenidae
    • Cultellidae
  • Superfamily Tellinoidea
    • Tellinidae
    • Donacidae
    • Psammobiidae
    • Semelidae
  • Superfamily Arcticoidea
    • Arcticidae
    • Trapeziidae
  • Superfamily Glossoidea
    • Glossidae
    • Vesicomyidae
  • Superfamily Corbiculoidea
    • Corbiculidae
  • Superfamily Veneroidea
    • Veneridae
    • Petricolidae
    • Cooperellidae
    • Glauconomidae
• Order Myoida
  • Superfamily Myoidea
    • Myidae
    • Corbulidae
  • Superfamily Gastrochaenoidea
    • Gastrochaenidae
  • Superfamily Hiatelloidea
    • Hiatellidae
  • Superfamily Pholadoidea
    • Pholadidae
    • Teredinidae

Subclass Anomalodesmata

• Order Pholadomyoida
  • Superfamily Pholadomyoidea
    • Pholadomyidae
  • Superfamily Pandoroidea
    • Pandoridae
    • Lyonsiidae
    • Cleidothaeridae
    • Myochamidae
  • Superfamily Poromyoidea
    • Poromyidae
    • Cuspidariidae
    • Verticordiidae
  • Superfamily Thracioidea
    • Laternulidae
    • Periplomatidae
    • Thraciidae
  • Superfamily Clavagelloidea
    • Clavagellidae

The above material has been adapted from Dr. Rosenberg's The Encyclopedia of Seashells,
published by Robert Halt, Ltd., London, 1992.