11" Igdamanosaurus (Globidens) Mosasaur Jaw Section

This is a 11" long jaw section of Igdamanosaurus aegyptiacus a type of Mosasaur, formerly assigned to the genus Globidens. Most Mosasaurs had sharp teeth that had evolved to grab slippery prey such as fish. Igdamanosaurus had semispherical teeth with rounded nubbin-like points, which were much better suited for crushing tough armored prey like small turtles, ammonites, nautili, and bivalves.

Real, non-composited jaw sections like this one are difficult to come by as the jaws are often faked with teeth composited in. This one has NO COMPOSITING OR RESTORATION and is nicely prepared. It appears to have come from the very front of the jaw and there are 4 teeth still present.
The jaw section comes from the Late Cretaceous (~70 million year old) phosphate deposits in the Oulad Abdoun Basin of Morocco. These teeth are uncovered as part of the massive phosphate mining operations in the area. Teeth in this nice of condition can be hard to acquire as most are damaged or destroyed by mining equipment.