This is a reconstructed jaw of a shark with 160 (!) original teeth. The mako shark lived during the Miocene of Europe, from 23 to 5 million years ago, primarily in coastal waters (shallow seas), and could reach a length of over 6 meters. The many different teeth in this reconstruction were collected by Mr. Jaap Roos, most of which were found by him personally. Each tooth has a specific shape that corresponds to its position in the jaw. The discovery site is the quarry in Mill/Langenboom in the northwest of the province of North Brabant. Sharks are cartilaginous fish, meaning their skeleton is made of cartilage and usually does not fossilize. Therefore, the jaw is a synthetic reconstruction, but all the teeth are genuine.