Complete Mandible Jaws

A complete Mosasaur mandible (lower jaw) is a spectacular, museum‑quality fossil that captures the entire feeding apparatus of one of the Cretaceous’s most successful marine predators. These mandibles, ranging from 60 cm to over 1 m in length, include the dentary bone that holds the teeth, the angular and surangular bones that form the lateral wall, and the articular region that connects to the skull. The phosphate mines of the Oulad Abdoun Basin in Morocco produce mandibles with extraordinarily fine preservation, often retaining the delicate splint bones and the natural curvature of the jaw arcade. For the collector, a complete mandible represents a holistic view of the animal’s biology: you can see how the teeth interlocked, how the jaw was attached to the skull, and how the animal’s growth rings (annuli) are visible in the bone. We carefully evaluate each mandible for repairs, preferring natural pieces with minimal composites. The presence of a full set of functional teeth, including replacement teeth in the dental groove, greatly enhances the value. Every mandible is sold with a detailed provenance report, including the excavation site, depth within the phosphate series, and a statement of authenticity verified by our in‑house paleontologist. Such a large specimen requires special handling—we use custom foam and crate systems for transport, with full‑value insurance. A complete Mosasaur mandible is a conversation piece that brings the ancient marine world into your home or institution.