3.35" Jurassic Ammonite (Asteroceras) Fossil - Dorset, England

Jurassic Ammonite (Asteroceras) Fossil - Dorset, England #240740

This is a beautifully preserved, 3.35" wide Asteroceras confusum ammonite fossil from the Lyme Regis region of England. One half of the ammonite has been prepped free from the rock. The base of the rock has been cut flat, creating an aesthetic display.

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