4" Douvilleiceras Tractor Ammonite Fossil Cluster on Stand Madagascar Jurassic Age Pachyrhizodus Most likely from a rib

Most likely from a rib of Edmontosaurus

Their well-preserved fossils are crucial for understanding the evolution of arthropods

Classified within the extinct subclass Ammonoidea

9 million years ago

4" Douvilleiceras Tractor Ammonite Fossil Cluster on Stand Madagascar Jurassic Age Pachyrhizodus Most likely from a ribLocation: Mahajanga Province, Madagascar Weight: 5. 7 Ounces (With Stand) Dimensions: 4 inches long, 2. 5 inches wide, 1. 7 inches thick (Matrix with Stand) The items pictured are the ones you will receive. Douvilleiceras Tractor Ammonite The Tractor Ammonite, scientifically known as Douvilleiceras, is a distinctive genus of extinct cephalopods belonging to the order Ammonitida, widely recognized for its robust, coarsely ribbed shell morphology that