1" Triassic Fossil Ammonite (Frenchites) - Nevada

Triassic Fossil Ammonite (Frenchites) - Nevada #262678

This is a 1" fossil ammonite (Frenchites occidentalis) from the Prida Formation in Humboldt Range, Nevada. Comes with an acrylic display case.

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