Ammonite

Crystal-filled shell

This beautiful ammonite owes its appearance to calcite crystals which filled the spaces left when the internal chambers disolved. You can see the sediment that filled the outermost chambers of the shell, some of which is also trapped in the shell centre. 

Find out more about ammonites on the molluscs pages.

Common name

Ammonite

Scientific name

Garanitiana

Type

Molluscs > Cephalopods


Strata

Inferior Oolite

Time period

Middle Jurassic

Age

170 million years

Where found

Stoney Head, Uploders

Found by

Unknown

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.01864