Bivalve shells and ammonite

These Oxytoma bivalves attached themselves to a Prodactylioceras ammonite, possibly while it was still alive. By attaching themselves to a swimming ammonite, the bivales avoided settling on the stagnant sea floor.

Find out more about bivalves and ammonites on the molluscs pages.

Common name

Bivalve shells and ammonite

Scientific name

Oxytoma

Type

Molluscs > Bivalves


Strata

Green Ammonite Beds

Time period

Lower Jurassic

Age

190 million years

Where found

Seatown

Found by

Unknown

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.01110-12