Tylosaurus rex rewrites the story of giant sea predators, not just for its size but for what its bones reveal about mosasaur ...

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the Netherlands, fueling the rise of the field of vertebrate paleontology.

“Besides being huge, roughly twice the length of the largest great white sharks, T-rex appeared to be a much meaner animal ...

Just when you thought it was safe to go back in the water, scientists have discovered a giant, bus-size sea predator that was ...

Researchers describe Tylosaurus rex from more than a dozen previously known fossils and update dataset crucial for studying mosasaur evolution “Everything is bigger in Texas and that includes the ...

The Texas fossils were noticeably different from similar specimens found in Kansas. They were larger, had serrated teeth and ...

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the Netherlands, fueling the rise of the field of vertebrate palaeontology (the ...

(CNN) — An enormous sea snake from Norse legend that was fathered by the trickster god Loki and grew big enough to circle the globe is now the namesake for a different type of “monster” — a newly ...

Long before humans existed, giant marine predators ruled the warm prehistoric seas that once covered much of North America.

A colossal new sea predator named Tylosaurus rex has been identified from fossils found in Texas, revealing a brutal 43-foot-long hunter that ruled ancient oceans 80 million years ago. The discovery ...

Geologists have uncovered the fossil of a mosasaur, an ancient aquatic predator, in Mississippi. Often referred to as a “sea dragon” due to its imposing size and fearsome appearance, this prehistoric ...