There’s a newly crowned T. rex. This one, called Tylosaurus rex, was a tyrant of the sea and mosasaur spanning up to 43 feet ...

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 ...

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 ...