Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or ...

A new pachycephalosaur, officially named Zavacephale rinpoche, was described in the journal Nature. The word rinpoche is ...

Paleontologists spotted injuries on the tails of duck-billed dinosaur fossils that might have occurred during mating.

Now, a research team says new evidence resolves the case. The latest clue comes from a complete skeleton — first uncovered in ...

Palaeontologists have argued for decades over whether certain fossils are young Tyrannosaurus rex or another species entirely ...

Beneath layers of ancient sediment and time, a small but game-changing dinosaur skull emerged from the earth, as if it had ...

An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...

The cast of the skull of Nigersaurus. The fossil skull of Nigersaurus was one of the first dinosaur skulls to be digitally reconstructed from CT scans. Photograph by Ira Block, Nat Geo Image ...

This week paleontologists at a Colorado dinosaur center unveiled a 3D model of the skull of a teratophoneus curriei. That's a "rare new genus of tyrannosaur," according to the Rocky Mountain Dinosaur ...

It was a gray morning on the steppes of central Mongolia when paleontologist Tsogtbaatar Chinzorig spotted something glinting on a distant slope. It was not a rock.

The skeletons of a duck-billed dinosaur found more than 100 years ago are so well-preserved that they contain fleshy body ...

CHEYENNE, Wyo. | A dinosaur skull seized from a Wyoming home is related to an investigation into fossil smuggling from Mongolia, indicating that efforts to stem the illegal trade are making progress, ...