Belemnite

The commonest part of a belemnite to be preserved is the guard (shell) which is composed of solid, radiating needles of calcite. Away from the pointed end, the shell contains a V-shaped hollow in which sat the phragmocone, a chambered shell filled with gas to help the animal float. This is only occasionally preserved – look closely and you’ll see that the second from bottom specimen contains one. The phragmacone is more commonly missing and the end of the shell is filled with mud or crushed flat, which the other specimens illustrate.

These belemnites bear a strong resemblance to Passaloteuthis apicurvata.

Find out more on the molluscs page.

Common name

Belemnite

Type

Molluscs > Cephalopods


Strata

Lower Lias

Time period

Lower Jurassic

Age

unknown

Where found

Unknown

Found by

Unknown

Museum

Bridport Museum

Accession number

BRPMG 1156, 1163, 1166 and 1168