Halisaurus (Mosasaur) Jaw Sections With 8 Teeth

This is a pair of jaw sections in the rock from Halisaurus, a small type of Mosasaur. They were small compared to other Mosasaurs reaching lengths of 3-4 meters.

This jaw section is Upper Cretaceous in age and was collected in the phosphate mines in the Oulad Abdoun Basin of Morocco. Fossils of Halisaurus are quite rare compared to some of the Mosasaurs from these deposits. There is NO RESTORATION or compositing on this piece, and it's been nicely prepared.

Beware: Mosasaur jaws are one of the most frequently faked fossils. You can find hundreds of nearly identical looking jaws for sale described as authentic from many places both online, at gift shops and fossil shows. They are typically constructed using real Mosasaur teeth (which are quite common) mounted on a cast or molded jaw. Real jaws are quite rare finds.