Bivalve shell

Spiny shell

This bivalve, Spondylus spinosus, has taken defence to an extreme, developing long, sharp spines. However, they may actually have been of more use in preventing the shell from sinking in the soft ooze at the bottom of the chalk sea. 

Find out more bivalves on the molluscs pages.

Common name

Bivalve shell

Scientific name

Spondylus spinosus

Type

Molluscs > Bivalves


Strata

Chalk

Time period

Upper Cretaceous

Age

85 million years

Where found

Thorncombe

Found by

Unknown

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.10042-4