3.2" Ammonite (Prionocycloceras) From Madagascar - Unusual Species

Here is a beautiful ammonite fossil of the genus Prionocycloceras sp., collected from Toliara, Madagascar. Some of the exterior shell has chipped polished away, exposing the suture pattern beneath. These ammonites are Upper Cretaceous, Coniacian Stage or approximately 86-90 million years old.

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. Ammonites appeared in the fossil record about 240 million years ago and they barely survived several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

Artists reconstruction of an ammonite.  By Nobu Tamura
Artists reconstruction of an ammonite. By Nobu Tamura
Prionocycloceras sp.
Toliara, Madagascar
3.2" wide
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