5.3" Ammonite (Pachydiscus) Fossil - Alaska

Ammonite (Pachydiscus) Fossil - Alaska #180826

This is a 5.3" fossil ammonite (Pachydiscus hazzardi) from the Upper Cretaceous in Alaska. This comes out of an old collection of ammonite fossils we recently acquired including many from unusual locations that you can no longer get material from.

The specimen includes an acrylic display stand.

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