On a riverbank in Mississippi, State Survey geologists found a ginormous fossil vertebra of a giant sea lizard called a ...

Researchers uncovered one vertebra, and based on its size, they estimate the massive creature was at least 30 feet long when it roamed the shallow seas that covered the region roughly 66 million years ...

It was capable of growing beyond 30 feet in length and weighed around 10 tons—a mature elephant plus a sedan car.

Researchers have uncovered the fossilized remains of two previously unknown species of prehistoric sharks in the deep ...

"This is a true, true sea monster," said James Starnes Mississippi Department of Environmental Quality's Office of Geology. "This is about as big as mosasaurs get." While there were many different ...

The discovered vertebra, potentially the largest found in Mississippi ... from the mud along a creek they realized it was from a sea monster known as a mosasaur and the size of it shocked them.

The remains of a giant “sea monster” that once dominated the oceans ... Mosasaurs were apex predators, and at their largest, they could weigh up to 20,000 pounds (9,000 kilograms) and reach ...