Mosasaur, Premium Composite Double Jaw Display Fossil with Seven Teeth/Bone Material Pieces (Morocco)

This listing is for one unique, premium quality Mosasaur Jaw on rock which is sold as seen. These genuine Mosasaur teeth with bone material has been assembled onto a composite rock to produce a display fossil.

Measuring approx. 20cms x 14cms x 5cms, with individual teeth/bone pieces measuring between 1/1.5cms x 2/3cms. There are seven teeth/bone pieces on the display, and it weighs approx. 1760g.

Species: Llodon Anceps
Age: Cretaceous Period
Formation: Phosphate Deposit
Location: Oued Zem, Khourbga
Country: Morocco

History: A Mosasaurus was a type of Mosasaur – a marine reptile that lived during the Late Cretaceous period- approximately 88 million to 66 million years ago.  They lived in oceans all around the world, thriving in many marine environments.  Often confused with dinosaurs, the Mosasaurus lived alongside the dinosaurs but were in fact a marine reptiles, related to modern day monitor lizards or snakes (the debate continues). The first fossilized remains were discovered at the end of the 18th Century.

As top predators, Mosasurs were at the top of the food chain, and were believed to be solitary hunters.  With sleek streamlined bodies and four limbs modified into flippers, they were powerful swimmers navigating the water with ease and instead of claws they had powerful paddle-like limbs and long tails that had flukes allowing them to manoeuvre with agility and speed. Growing to a size of up to 15 metres long, with strong jaws and up to 100 sharp teeth, the Mosasaurs could easily catch and devour their prey, with a bite strong enough to crush shell and bones. 

However, the survival of these large apex predators relied on there being an abundance of prey. When the Chicxulub asteroid impacted with a 100 million megaton blast in the Gulf of Mexico 66 million years ago, creating a crater 150 kilometres wide, it triggered a global ecological collapse.  For marine life, this impact event triggered the collapse of the oceanic food chain and triggered a  surge in underwater volcanic activity destabilizing mid ocean ridges and accelerating massive, climate-altering magmatic eruptions worldwide.  Overtime, the Mosasaurs thus starved to death and the species became extinct along with  75% of Earth's species at that time, including all non-avian dinosaurs.

All our crystals and fossils are genuine.