Mosasaurus Tooth | Cretaceous Period
History of the Artifact The Mosasaurus was a large, predatory marine reptile that lived during the Late Cretaceous Period, about 101 to 66 Million Years Ago. It was part of the Mosasaur family, a group of powerful, serpentine predators that dominated the seas in the final era of the dinosaurs. Despite its superficial resemblance to dinosaurs, Mosasaurus was more closely related to modern snakes and monitor lizards. These reptiles had streamlined bodies, paddle-like limbs, and long, muscular tails, which made them well-adapted for swimming in ocean environments. Growing up to 17 meters (about 56 feet) in length, Mosasaurus was one of the largest mosasaurs, and it was likely an apex predator. Its long, robust jaws were filled with conical, sharp teeth, perfect for seizing prey such as fish, marine reptiles, ammonites, and even smaller mosasaurs. The positioning of its eyes high on its skull gave it keen vision for hunting in the water, while its nostrils were set back, allowing it to bre