Arizonasaurus was an archosaur from the Middle Triassic.

Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, according to scientists. Their study, based on a review of decades of research on ...

We’ve long heard that a meteorite likely wiped out the dinosaurs, but an international study is shedding light on how climate change may have played into the extinction of the dinos. A study recently ...

It's been 66 million years since dinosaurs roamed the Earth, and many may blame an asteroid's explosive collision with our planet for the end of the creatures' reign. But for years, scientists have ...

Sixty-six million years ago, a catastrophic asteroid impact wiped out 75% of Earth’s species, bringing an abrupt end to the reign of the nonavian dinosaurs. The 9-mile-wide (15 km) space rock struck ...

Rock layers deposited before and after the major dinosaur extinction event 65 million years ago are surprisingly different.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Dinosaur Mysteries digs into the secretive side of the “terrible ...