7.1" Jurassic Ammonite (Stephanoceras) Fossil - England

This is a large, 7.1" wide Stephanoceras humphresianum ammonite fossil from Dorset, England. It is Middle Jurassic in age, or approximately 168 million years old. It has been prepped free from the rock it was found in an is accompanied by a display stand.

Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. Ammonites appeared in the fossil record about 240 million years. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

Stephanoceras humphresianum
Burton Bradstock, Dorset, England
Humphresianum Zone, Inferior Oolite
7.1" wide
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.