A beautiful and big (2.1 cm long) Temnodontosaurus tooth from the quarry Kromer in Holzmaden (Lower Jurassic).
Temnodontosaurus is a very big Ichthyosaur, which mainly hunted ammonites. The teeth had robust roots so that they could withstand the stresses of cracking shells without breaking off. Such big teeth in a good condition are very rare in Holzmaden. Too bad that a part of the root is missing and that the surface is a bit damaged.
Some more pictures: