Mosasaurus Jaw

Mosasaurus jaw fossils are remarkable remnants of the apex marine predator that patrolled the warm, shallow seas of the Late Cretaceous approximately 70–66 million years ago. Our specimens are sourced exclusively from the world‑famous phosphate mines of the Oulad Abdoun Basin in the Khouribga region of Morocco, a geological treasure trove where fine‑grained marine sediments have preserved skeletal elements with stunning fidelity. Each jaw fragment reveals the robust, elongated structure adapted for delivering a powerful bite, with distinctive conical tooth sockets that often retain one or more original teeth. The jaw bones themselves exhibit natural curvature and deep nutrient grooves that speak to the living animal’s physiology. For collectors, the most important attributes are the quality of preservation—dense mineralization with minimal porosity—and the presence of in situ teeth, especially those with intact enamel. Preparation by skilled local technicians using micro‑chisels and air‑scribes reveals the finest details while maintaining the fossil’s stability. We recommend inspecting the jaw’s overall shape symmetry; a natural piece will show slight asymmetry typical of real bone. All our Mosasaurus jaws are guaranteed genuine fossils, never composites or heavily restored misrepresentations, and each purchase includes a certificate of authenticity detailing the specimen’s geological origin and Moroccan provenance. Shipping is handled with extreme care using custom‑fit crates, fully tracked and insured, ensuring your investment arrives intact. The entire process, from excavation to delivery, adheres to strict ethical guidelines, giving you confidence that you are acquiring a legal and documented piece of Earth’s deep history.