Paleontologists have long hailed Tyrannosaurus rex as king of the dinosaurs. Now, the name “T. rex” also belongs to a newly described extinct carnivore — a massive marine reptile with the scientific ...

Tyrannosaurus rex might be the most feared dinosaur to ever walk the Earth, but there was once another T. rex that terrorised the ancient seas. Named Tylosaurus rex, this fierce creature is a massive ...

There's a new T. rex in the fossil record, only this one terrorized the ancient seas. New research led by scientists at the American Museum of Natural History, the Perot Museum of Nature and Science ...

Earth was a terrifying place during the Cretaceous period, some 66 million to 145 million years ago. During its tail end, Tyrannosaurus rex prowled the land. And a little before that, another kind of ...

The Dallas Morning News turned to an expert on mosasaurs at the University of Cincinnati to discuss the discovery of a new species found in Texas dubbed “the T. rex of the sea.” Researcher Amelia ...

Add Yahoo as a preferred source to see more of our stories on Google. This mosasaur skeleton is not what we thought. (Zietlow et al., Bull. Am. Mus. Nat. Hist., 2026) A prehistoric predator to rival ...

Call it a sea rex. Just when you thought it was safe to go back in the water, scientists have discovered a giant, bus-size sea predator that was so monstrous that they’re calling it the T. rex of the ...

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater rivers alongside dinosaurs and crocodiles. A massive tooth found in North ...

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new research based on analyses of a mosasaur tooth found in ...