One of the most interesting facts about Mosasaurus is that it had a streamlined body and flippers. The movie exaggerated its size dramatically. It was big but it wasn’t nearly that big. It wouldn’t have eaten sharks though like it was shown in Jurassic World. However, paleontologists believe that its diet consisted of fish, shellfish and squids. So what exactly did Mosasaurus eat? Well, it ate just about anything it wanted. Teeth that were able to eviscerate anything this animal wanted to eat.

To top it off, it had long jaws which were filled with lots of razor-sharp teeth.

It was approximately 50 feet long – or longer than a semi-truck trailer and it weighed about 15 tons – or almost twice the weight of an elephant. This aquatic animal was indeed a fierce looking creature. The first time that you looked at Mosasaurus pictures, you most likely got scared. A notion that went against prevailing religious thought at the time and was very controversial. It wasn’t until it was examined by Georges Cuvier and he discovered it was some sort of marine reptile that he came to the conclusion that extinct species lived on the Earth at one time. It was then thought to have been an alligator. At the time it was discovered, it was assumed to have been a whale. Mosasaurus was discovered at a time before anyone had even discovered evolution or even, dinosaurs. In 1829, Gideon Mantell named it Mosasaurus – a name which means “Meuse lizard” in Greek. More fossils would turn up from the 1770s through the 1820s.

However, that fossil was incomplete and consisted of only the skull of the animal. It was first discovered during the mid-18th century in Maastricht, Netherlands and eventually collected by Jean-Baptiste Drouin. Mosasaurus is an aquatic lizard which lived approximately 70 million to 65 million years ago during the Late Cretaceous Period.

Giganotosaurus jurassic world evolution