Some 70 million years ago, a fearsome creature roamed Patagonia. Its preferred prey were likely dinosaurs. Paleontologists uncovered an exceptionally preserved fossil in southern Argentina in 2020.

Tens of millions of years ago, an apex predator resembling a giant crocodile stalked the humid freshwater floodplains of southern Patagonia. Measuring up to 11.5 feet (3.5 meters) long and weighing ...

WASHINGTON — A fossil unearthed in Argentina of a newly identified species of meat-eating dinosaur is providing insight into a poorly understood group of Cretaceous Period predators, thanks not only ...

The creature, named K. atrox, was an extinct ancestor of the modern crocodile. A new study has identified a massive creature that hunted and ate dinosaurs 70 million years ago. It’s called ...

A gigantic crocodile-like hypercarnivore likely hunted dinosaurs 70 million years ago in what is now Argentina, a new study reveals. Researchers discovered the fossilized skeleton from the extinct ...

You might think that the age of dinosaurs is set in stone, like the fossils they left behind, but paleontologists uncover new species and make new discoveries practically every day. Recently, ...

M. macrothorax was a megaraptor that stood at around 30 to 33 feet (9 to 10 m) long, CBBC Newsround reported in 2022. While K. atrox was smaller than M. macrothorax, Novas said it was capable of ...