North American Oyster Classification after Stenzel, 1971

Suborder Ostreina

• Superfamily Ostreacea

  • Family Gryphaeidae

    • Subfamily Gryphaeinae

      • Genus Gryphaea
      • Genus Catinula
      • Genus Liostrea
      • Genus Pernostrea
      • Genus Praexogyra

    • Subfamily Pycnodonteina

      • Genus Pycnodonte
      • Genus Hyotissa
      • Genus Neopycnodonte
      • Genus Texigryphaea

    • Subfamily Exogyrinae

      • Genus Exogyra
      • Genus Aetostreon
      • Genus Amphidonte
      • Genus Ceratostreon
      • Genus Ilymatogyra
      • Genus Nanogyra
      • Genus Planospirites
      • Genus Rhynchostreon
      • Genus Vultogryphaea

  • Family Ostreidae

    • Subfamily Ostreinae

      (Nonincubatory Genera)

      • Genus Acutostrea
      • Genus Crassostrea
      • Genus Flemingostrea
      • Genus Pseudoperna
      • Genus Saccostrea

      (Incubatory Genera)

      • Genus Ostrea
      • Genus Cubitostrea
      • Genus Ferganea
      • Genus Sokolowia

    • Subfamily Lophinae

      • Genus Lopha
      • Genus Peilinia
      • Genus Agerostrea
      • Genus Alectryonella
      • Genus Calmeleolopha
      • Genus Nicaisolopha
      • Genus Rastellum