Arnioceras are often found in large numbers in certain rock layers, particularly the Arnioceras stone band. They are one of the most common ammonites found locally, and these specimens are very well-preserved.
Ammonite
Museum:
Lyme Regis
Period:
Lower Jurassic
Strata:
Shales with beef
Fossil Type:
Molluscs >Cephalopods
Common Name:
Ammonite
Scientific Name:
Arnioceras semicostatum
Age:
190 million years
Where it was Found:
Near Lyme Regis
Found by:
Pete Langham
Accession Number:
L.1986.280.8
Images: