2.6" Bathonian Ammonite (Perisphinctes) Fossil - France

Bathonian Ammonite (Perisphinctes) Fossil - France #152737

This is a fossil ammonite of the genus Perisphinctes aurigerus, collected from St. Benin, France. It is Bathonian (Jurassic period) in age, or approximately 168 million years old. The base of the rock has been cut flat for presentation purposes.

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

What an ammonite would have looked like while alive.

More about ammonites