22132 - Beautiful 4.03 inch Douvilleiceras mammilatum Lower Cretaceous Ammonite Madagascar - Agatized Douvilleiceras United States (9: New York
Yard notes & kiln story
Description
United States (9: New York
It has some small glued and tiny filled fractures
several of which are semi-precious gemstones
Prionocheilus sp
Year fell: 2011
22132 - Beautiful 4.03 inch Douvilleiceras mammilatum Lower Cretaceous Ammonite Madagascar - Agatized Douvilleiceras United States (9: New YorkThis is a huge 4. 03" wide Douvilleiceras ammonite from the Upper Cretaceous of Madagascar. This genus of ammonites has earned the local name "Tractor Ammonites", due to their distinctively bumpy surface and pronounced ridges making them resemble a tractor tire. This particular example has been nicely prepared to remove the hard rock and expose the shell.