European Flat Oyster shell (Ostrea edulis Linnaeus) on the sand at Swansea Bay, South Wales, 1st February 2018. Left valve exterior surface showing a possible saddle oyster chalky byssus lower left, and Polydora ciliata type burrows dorsally.
A site about the interpretation of the shells of oyster and other edible marine molluscs from archaeological excavations.
Oysters etc. 
