Arizonasaurus was an archosaur from the Middle Triassic. Dinosaurs evolved from a group of reptiles called archosaurs (“ruling reptiles”) around 240–250 million years ago. This was during the Triassic ...

The Triassic is one of the most important periods in the evolution of life on Earth. After one of the greatest mass extinctions 252 million years ago, not only the dinosaurs but also many other groups ...

Beats finding a seashell.

While the Jurassic Park franchise mainly contains Cretaceous period dinosaurs, going into earlier eras like the Triassic ...

The mass extinction that wiped out nearly all life on Earth just before the dinosaurs evolved may have been caused by a global temperature drop rather than a rapidly warming climate. The End Triassic ...

In Paraíso do Sul in southern Brazil, scientists discovered a fossil of a dog-sized reptile dating back to 237 million years ago. The creature, a newly described species named Gondwanax paraisensis, ...

About 200 million years ago, the earliest dinosaurs had a lot of reptilian company. There were big crocodile-like creatures, ponderous plant-eaters, even four-legged runners with fierce, ...

Finished Netflix’s trending 'The Dinosaurs' documentary? Here are 10 dinosaur documentaries and series you can stream right now—and where to watch them.

A fossil site of "unique importance" has shed light on a lost prehistoric ecosystem where early dinosaurs roamed more than 200 million years ago. For a study published in the Proceedings of the ...

Dinosaurs evolved from a group of reptiles called archosaurs (“ruling reptiles”) around 240–250 million years ago. This was during the Triassic period. This branch of the tree of life gave rise to ...