Paleontologists have often determined how old a dinosaur was by counting the growth rings in its bones. Just like with trees, ...

An unprecedented fossil of a baby dinosaur curled up perfectly inside its egg is shedding more light on the links between dinosaurs and birds. The 70-million-year-old fossil preserves the embryonic ...

A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs.

A near-complete fossil from Patagonia has finally cracked open the mysterious evolutionary history of one of prehistory's strangest dinosaur groups ...

WASHINGTON, Feb 25 (Reuters) - In Argentina's Patagonia region 95 million years ago, some huge dinosaurs roamed the landscape ...

When the asteroid ended the age of non-avian dinosaurs, it cleared ecological space on a global scale. Small survivors ...

Citizen scientists uncover dinosaur toe bones and claws along Australia’s southern coast, sharpening insight into ancient polar life.

Add Yahoo as a preferred source to see more of our stories on Google. Paul Sereno and his colleagues spent years painstakingly preparing this Edmontosaurus annectens "mummy" unearthed in Wyoming, ...

Finding dinosaur fossils on the island of Ireland is harder than finding a "needle in a haystack", the curator of geology at National Museums Northern Ireland has said. But the only two ever to have ...

Add Yahoo as a preferred source to see more of our stories on Google. Monument staff work on excavated dinosaur fossils in the Quarry Exhibit Hall Parking Lot. Located on the Colorado-Utah border at ...