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Temporal range: Permian - Recent
A lower valve (the attachment valve) of a shell of Ostrea edulis
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Family: Ostreidae
Genus: Ostrea
(Linnaeus, 1758)

See text

Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters.

Fossil valves of Ostrea forskali from Pliocene of Italy

Fossil records[edit]

This genus is very ancient. It is known in the fossil records from the Permian to the Quaternary (age range: from 259 to 0.0 million years ago). Fossil shells of these molluscs can be found all over the world. Genus Ostrea includes about 150 extinct species.[1][2]


At least one species within this genus, Ostrea lurida, has been recovered in archaeological excavations along the Central California coast of the Pacific Ocean, demonstrating it was a marine taxon exploited by the Native American Chumash people as a food source.[3]


Species in the genus Ostrea include:[1][4]

See also[edit]


  1. ^ a b Fossilworks
  2. ^ J.D. Dana (1996)
  3. ^ C.M. Hogan, 2008
  4. ^ WoRMS
  • James Dwight Dana (1996) Manual of Geology: Treating of the Principles of the Science with Special Reference to American Geological History, American Book Co., 1088 pages
  • C.Michael Hogan (2008) Morro Creek, The Megalithic Portal, ed. by A. Burnham [1]