This pyrite (pyritized) fossil is from Le Clapier, Cornus, Aveyron, Occitane, France. This is a well known fossil collecting area in the south of France. The area has cliffs which contain various exposed sediments that date back to the Cambrian Series. These are fossil ammonites, species Arieticeras, dating to about 190 million years ago in the Jurassic Period (Pliensbacian Age). It is both a beautiful pyrite specimen as well as an exceptional fossil. The well defined ammonites were found in situ in a fossil rich shale. They were then cleaned, stabilized and coated in a protective lacquer. The matrix measures 3 3/4 x 2 1/4 x 13/16 inches or 95 x 57 x 21 mm with the larger ammonite being 14 mm across.