6.7" Iridescent Ammonite (Deshayesites & Aconeceras) Cluster

Iridescent Ammonite (Deshayesites & Aconeceras) Cluster #243281

This is a gorgeous cluster of Deshayesites deshayesi and Aconeceras trautscholdi ammonites from the Lower Cretaceous (Aptian) deposits of Saratov, Russia. They have been beautifully prepared from the hard concretion from which they were found. Many of the ammonites have a wonderful iridescent shell preservation and the largest complete ammonite (Deshayesites) is 1.8" wide. The Aconeceras ammonite is tiny and located just behind the center Deshayesites ammonite. The base of the rock has been cut flat.

Comes with an acrylic display 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