Ammonite

This rock contains three species of ammonite commonly found together. Three of the specimens in the block have chunks missing from the outer whorl. These holes in the shell are always found in the same part of the ammonite, and are interpreted as bite marks.

The bite marks are a paratype of Bicrescomanducator rolli. A paratype is an additional specimen that helps to define the variation in the fossil species.

Find out more about ammonites on the molluscs pages.

Common name

Ammonite

Scientific name

Promicroceras, Cymbites and Asteroceras margaritoides

Type

Molluscs > Cephalopods


Strata

Black Ven Marls

Time period

Lower Jurassic

Age

190 million years

Where found

Black Ven, Lyme Regis

Found by

Paddy Howe

Museum

Lyme Regis Museum

Accession number

L.2009.52