Name/Title
Mosasaur Tooth (Mosasaurus beaugei)Description
Mosasaur Tooth
Mosasaurus beaugei
Late Cretaceous (ca. 95–90 million years ago)
Kem Kem Basin
Morocco
This specimen is a fossil tooth of Mosasaurus beaugei, a large marine reptile belonging to the mosasaurs, apex predators of Late Cretaceous seas. Mosasaurs were not dinosaurs but highly specialized squamates—relatives of modern monitor lizards and snakes—that evolved powerful, streamlined bodies and strong jaws adapted for active predation.
The tooth is robust, conical, and gently recurved, with a smooth enamel surface suited for gripping and holding prey rather than slicing. Such teeth reflect a generalist carnivorous diet that likely included fish, ammonites, smaller marine reptiles, and carrion. Subtle longitudinal striations and color variation across the crown record both original growth patterns and post-burial mineralization.
The Kem Kem Basin preserves continental and marginal-marine deposits laid down along the southern margin of the ancient Tethys Sea. Fossils from this region document a rich coastal ecosystem where mosasaurs, pterosaurs, fishes, and dinosaurs occupied interconnected terrestrial and marine habitats. Isolated teeth like this are common mosasaur remains, as their skeletal elements were less likely to fossilize intact.
Compact yet evocative, this tooth represents one of the dominant marine predators of its time and provides a tangible link to the warm, shallow seas that once covered North Africa near the close of the Age of Dinosaurs.
Dimensions: 2.03 × 1.17 × 1.12 inches (5.16 × 2.96 × 2.84 cm)Create Date
August 3, 2025Update Date
September 12, 2026
