Pterosaurus (Anhanguera) Wing Bone Section, Kem Kem Formation, Morocco, Cretaceous 112-99 MYO. This bone section is from a wing of an Anhanguera pterosaur with a wing span of 4 meters (about 13 feet). There is no restoration on this bone and has beautiful curvature. This bone section is in pristine condition and there is a section on the outer bone and inside the bone showing the red matrix it was found in. Pterosaur bones and teeth are very fragile which makes this a very rare find.