The Mosasaurus was a large carnivorous marine reptile that flourished in the seas of the Late Cretaceous period. It was one of the largest members of the Mosasauridae family, characterized by a crocodile-like head, a barrel-shaped and streamlined body, and limbs that evolved into fins. It had a double-hinged jaw that allowed it to open its mouth wide, and it is believed to have swallowed its prey whole. Recent research on its close relative, Platecarpus, suggests that it may have had a crescent-shaped tail fin, similar to that of a shark. Mosasaur fossils have also been discovered in various locations across Japan.

English name: Mosasaurus 　Origin of name: Meuse River Lizard 　Classification: Class Reptilia / Order Squamata / Family Mosasauridae 　Size: Total length 12.5–18 meters 　Period of existence: Late Cretaceous

Jurassic World

In the movie "Jurassic World," its impressive scene of leaping out of the water to catch prey made its name widely known, and its popularity has now become mainstream.

Ruler of the Seas

Mosasaurus is believed to have been the king of the Mesozoic seas, reigning at the top of the marine food chain. With its double-hinged jaw, it was able to open its mouth wide and prey on various marine creatures.

Related to Monitor Lizards

Mosasaurus is related to modern-day monitor lizards and is nicknamed the "sea lizard." It is believed to have had well-developed organs for sensing odors using its tongue, similar to lizards and snakes.

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