complete lower mosasaur jaw

A complete lower Mosasaur jaw (mandible) is the ultimate addition for any serious marine vertebrate fossil collection. These specimens represent the entire lower half of the jaw, often measuring 80 cm to 1.5 m in length, and contain multiple teeth still rooted in their natural sockets. The jaw bones from the Moroccan phosphate mines display excellent preservation: the dentary, splenial, and angular bones are typically fused and show the characteristic curvature and overall robustness that allowed Mosasaurus to deliver its crushing bite. A fully articulated lower jaw reveals the precise spacing and function of the teeth—sharp, conical, and recurved—along with replacement pits where new teeth were erupting. For collectors, completeness is paramount; a jaw that includes the articular end where the jaw hinged to the skull is especially rare. We recommend checking that the teeth are original and not glued‑in replicas; natural teeth will have a distinct root structure and a color gradient from root to crown. Each complete lower jaw is accompanied by a comprehensive certificate of authenticity that details the species, geological layer, and the preparator who worked on it. Because of the size and weight, shipping is arranged with custom‑built wooden crates and insured for the full value. Owning a complete lower Mosasaur jaw gives you a dramatic, museum‑grade fossil that illustrates the apex of Cretaceous marine predation.