Ammonite fossil
5
Coin
The copyright of the 3D model belongs to the original author and the material may not be distributed, published, transmitted, copied, rented, resold or compiled in any form.
It is an extinct marine cephalopod mollusk, belonging to the subclass ammonites, which lived from the Devonian to the end of the Cretaceous. It is known for its unique spiral shell, which usually presents complex patterns and designs, is made of calcium carbonate, and is divided into chambers separated by thin walls called partitions. The diameter of the ammonites varies from a few centimeters to more than two meters, and the shapes are varied, from tightly coiled forms to more open and loosely coiled forms. One of the most abundant and successful sea creatures of its time, it was an active predator, catching prey with its tentacles. The rapid evolution and wide distribution of ammonite make it an important standard fossil for stratigraphic division and correlation
