Huge 17" Jurassic Ammonite (Kranosphinctes?) Fossil - Madagascar

Huge Jurassic Ammonite (Kranosphinctes?) Fossil - Madagascar #175802

This is a huge 17" wide ammonite (Kranosphinctes?) fossil from Madagascar. It is Late Jurassic in age and it was collected near Sakaraha in the Tulear Province of Madagascar. It's a real beast, weighing in at over 56 lbs. There is some repair and minor restoration, as is the case with most of the larger ammonites that are fractured by geological forces while still in the ground. The surface of the ammonite has been lightly polished.

A metal display stand will accompany your purchase.

Ammonites were predatory mollusks that resembled squids with shells. These cephalopods had eyes, tentacles, and spiral shells. Though their shells resemble that of a nautilus, they are actually more closely related to living octopuses. Ammonites appeared in the fossil record about 240 million years ago, barely surviving several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

Artist's reconstruction of an ammonite, by Nobu Tamura

More about ammonites