- Name Meaning: “Meuse River lizard”
- Habitat: Seas of Europe and North America
- Length: 60 ftLength: 18m
- Weight: 5 tons5,000 kg
- Stance: Aquatic
- Diet: Carnivore
- Age: Late Cretaceous, 70-66 million years ago
Mosasaurus once ruled the Cretaceous seas. An immense seagoing lizard—and not an actual dinosaur—Mosasaurus can use its fearsome array of teeth to catch fish, birds, and other marine reptiles—even great white sharks. In fact, Mosasaurus has a second set of teeth in its upper palate that ensures any prey sliding down its throat will not be able to escape.
Fossil imagery courtesy of Natural History Museum of Los Angeles County.
Did you know?
The Komodo dragon and monitor lizards are among the closest living relatives of Mosasaurus.