Mosasaur Fossil Jaw from Morocco – Ancient Marine Predator
The Mosasaur was a massive marine reptile that lived during the Late Cretaceous period, around 70–66 million years ago. It was not a dinosaur but a close relative of monitor lizards. This Mosasaur fossil jaw from Morocco shows the sharp teeth and sturdy bone structure of a powerful hunter that preyed on fish, ammonites, and even other reptiles.
The phosphate-rich deposits of Morocco are world-famous for producing exceptional Mosasaur remains. This fossil jaw was uncovered from those layers with great care. It reveals natural preservation with visible teeth still fixed in the bone. Each tooth shows the distinct curved shape used to tear prey. Some jaws even have fine surface details that show where muscles once attached.
Origin and Geological Context
This specimen comes from the Khouribga region of Morocco. The area’s sedimentary rocks date back to the Late Cretaceous period (Maastrichtian Stage). These rocks were formed when Morocco was covered by a shallow sea. The fine marine sediments helped preserve Mosasaur fossils with excellent detail.
The fossil you receive is cleaned and stabilized using clear consolidants for lasting display. No two jaws are alike. Each has its own pattern of teeth and mineral coloration due to the natural fossilization process.
Condition and Display
This Mosasaur jaw fossil is in good to excellent condition. Some natural wear or restoration may be present where the bone was fractured over millions of years. The fossil is mounted on a display base for easy presentation. Perfect for collectors, educators, or natural history enthusiasts.
Warranty and Shipping
Your fossil will be carefully packed and shipped with full tracking. We guarantee its authenticity. If you are not satisfied, you can return it within 30 days for a full refund.
Related Item: Explore our Mosasaur Tooth Fossils Collection »
External Reference: Learn more about Mosasaurs at the Smithsonian Ocean Portal
Bullet Point Feature List
Genuine Mosasaur fossil jaw from Morocco
Late Cretaceous age (approx. 70 million years old)
Real bone and teeth preserved in fine detail
Sourced from Khouribga phosphate mines
Museum-grade specimen, each unique
Securely stabilized and ready for display
Includes certificate of authenticity
Technical Specs Table
| Feature | Description |
|---|---|
| Fossil Type | Mosasaur jaw |
| Material | Fossilized bone and tooth enamel |
| Size | Approx. 51 |
| Estimated Age | ~70 million years |
| Origin | Khouribga, Morocco |
| Geological Period | Late Cretaceous (Maastrichtian) |
FAQs
Did mosasaurs eat ammonites?
Yes, mosasaurs often ate ammonites. Fossil evidence shows bite marks on ammonite shells that match mosasaur teeth, suggesting they were a common prey item.
Did mosasaurs eat sharks?
Yes, some mosasaurs likely ate sharks. Fossilized shark remains have been found in association with mosasaur stomach contents, showing they were opportunistic predators.
Did mosasaurs eat other mosasaurs?
Yes, mosasaurs sometimes practiced cannibalism. Fossil evidence suggests they occasionally preyed on smaller or weaker members of their own species.
