4.7" Fossil Ammonite (Metengonoceras) - Texas

Fossil Ammonite (Metengonoceras) - Texas #117210

This is a 4.7" fossil ammonite (Metengonoceras) from the Walnut Clay Formation near Wise City, Texas. The outer shell of this specimen has been worn away revealing the intricate pattern of the inner shell sutures. This specimen i from an old collection and has a painted label.

Comes with an acrylic 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. True ammonites appeared in the fossil record about 240 million years ago. 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