Scientific name: Potamon potamios. Freshwater fossil Crab Location: Denizli Basin, Southwest Turkey Geological Formation: Travertine Deposits of Denizli Basin Age: Pleistocene ( years) Size: 6 x 3,5cm - Plate: 11 x 10,5 x 3cm REF.: #J455 DESCRIPTION: Observations: This is a spectacular fossil freshwater crab ( genus Potamon) preserved in travertine from the Denizli Basin in Southwest Turkey. The crab exhibits amazingly detailed, 3d preservation. It's totally coated and preserved as a three-dimensional outer cast within a natural cavity of a white travertine matrix. It is covered by an inorganic film of natural calcium carbonate. Travertine is a type of limestone that forms around mineral springs. It is often quarried for use as a building material, and that is how these crabs were discovered, during the quarrying of the stone slabs. The travertine deposits in the Denizli Basin are Pleistocene in age, having been formed within the past 400,000 years. All of our fossils come with a Certificate of Authenticity. Every week, the issued Certificates of Authenticity are updated in our database verification system on our website. If you find that your certificate has not yet been updated, please contact us and we will update it immediately. Display box not included. IMPORTANT SHIPPING INFORMATION: Our company is based in the USA, but our headquarters and products are located in Europe. Therefore, ALL PRODUCTS WILL BE SHIPPED FROM EUROPE. Consequently, any European customer will receive their shipment without any import charges, as it will be an intra-community shipment. For customers in the USA: Shipments will be made via UPS from Europe, and in this case, we will be responsible for any import charges. These will be paid online by us before the package arrives. Therefore, US customers will not pay any import fees. For the rest of the world: We are not responsible for any import charges applicable to the destination country.