About 250 million years ... largest of the many mass extinctions that have struck the planet. The most famous die-off ended the reign of the dinosaurs 65 million years ago between the Cretaceous ...

An analysis of North America’s fossil record for the 18 million years before dinosaurs disappeared suggests the prehistoric ...

About 250 million years ago, Earth faced its greatest catastrophe. The End-Permian Event wiped out more than 80% of ocean species and devastated life on land. While the mass extinction’s effects ...

Scientists have concluded that the impact that created this crater occurred 65 million years ago. The date corresponds perfectly to the date of the dinosaur extinction. Rare Metal The metal ...

The Jurassic Period is one of the three prehistoric geological periods of the Mesozoic Era. It spans from 145 million to 201 ...

About 252 million years ago, 80 to 90 percent of life on Earth was wiped out. In the Turpan-Hami Basin, life persisted and bounced back faster.

Today’s extinction rates are sky-high. But scientists debate if that’s sufficient evidence to conclude that Earth is undergoing a mass extinction event ... Starting around 145 million years ago, this ...

which occurred 372 and 445 million years ago respectively. At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova explosions ...

It’s a long-standing debate in paleontology: Were dinosaurs thriving when an asteroid hit Earth one fateful spring day 66 million years ago ... years before the mass extinction at the end ...