Ammonite

Not what it appears to be

This is an ammonite, not a snail! Ammonites from the Lower Chalk are very distinctive and evolved into a range of bizarre forms. In this case, rather than developing as a flat spiral like nearly all other ammonites, it coiled into a spire, like a snail. It is thought that these ammonites may have been filter feeders, or that they bumbled along just above the sea bed picking up food.

Find out more about ammonites on the molluscs pages.

Common name

Ammonite

Scientific name

Mariella (mariella) lewesiensis

Type

Molluscs > Cephalopods


Strata

Chalk, Lower

Time period

Upper Cretaceous

Age

96 million years

Where found

Unknown

Found by

Unknown

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.09713