Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the ...

Paleontologists in Argentina have discovered a new predatory dinosaur -- the fossils of which contained a crocodile bone within the dinosaur's mouth. The new species, dubbed Joaquinraptor casali, is ...

Researchers in Australia have confirmed that a crocodile that lived 93 million years ago ate a juvenile dinosaur as its last meal. Fossils of the crocodile Confractosuchus sauroktonos, which means ...

A growing body of research on dinosaurs' closest living relatives suggests the method that's been used to estimate how old a dinosaur was when it died may be leading paleontologists astray.

Researchers have named it Joaquinraptor casali, a tribute to the son of a researcher Getty Researchers digging in Argentina have uncovered a new type of ancient dinosaur that once roamed the Earth ...

A dinosaur that may have been one of the fiercest of the Cretaceous period has been excavated in South America – with an extinct crocodile’s leg in its jaws. The remains of the dinosaur, named ...

In the floodplains of southern Patagonia around 70 million years ago, a large predator lurked. Armed with strong jaws and sharp, serrated teeth - perfect for piercing and slicing through flesh - the ...

A fossil from the blustery plains of Patagonia is revising your book on one of the most elusive bands of hunting dinosaurs. The newly discovered dinosaur, Joaquinraptor casali, preyed on the soggy ...

July 6, 2005 — -- In the world of dinosaurs, the species known as Revueltosaurus callenderi was the Rodney Dangerfield of dinosaurs. It was only about three or four feet long, an ugly critter ...