Ammonite

Additional images

Spot the difference!

The identification of ammonites requires a very detailed study of their shape and form. This species, Androgynoceras wrighti, is subtly different from the much more common Androgynoceras lataecosta (also pictured).  On A. wrighti there are double tubercles or spines along each rib, whereas the ribbing of A. lataecosta is smooth and even. If you find an ammonite that’s different from others, you could get it named after yourself or a friend!

Find out more about ammonites on the molluscs pages.

Common name

Ammonite

Scientific name

Androgynoceras wrighti

Type

Molluscs > Cephalopods


Strata

Green Ammonite Beds

Time period

Lower Jurassic

Age

186 million years

Where found

Lyme Regis

Found by

Unknown.

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.01089