Bivalve oyster shell

Ancient and modern

This fossil oyster, at about 152 million years in age, was trawled off the sea bed near Portland, where the Kimmeridge Clay forms the sea floor. The white worm tubes and barnacle indentations are modern-day colonisers of this ancient fossil.

Find out more about bivalves on the molluscs pages.

Common name

Bivalve oyster shell

Scientific name

Gryphaea dilobotes

Type

Molluscs > Bivalves


Strata

Kimmeridge Clay Formation

Time period

Upper Jurassic

Age

152 million years

Where found

Portland Bill

Found by

Unknown

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.00906