The West Texas desert has a surprising feature: a prehistoric ocean reef. There is a surprising natural wonder in the middle of the vast West Texas desert: a prehistoric ocean reef built from the ...

The End-Permian mass extinction was caused by a much more extreme disaster than present-day climate change. Back then, the poles’ ice caps completely disappeared, which would translate to a 230 ...

Still, the fossil record leaves no doubt that a mass extinction occurred 251.4 million years ago, ending the Permian Period and emptying the world of most of its life forms before the onset of the ...

The end-Permian mass extinction, also known as the "Great Dying," took place 251.9 million years ago.

The end-Permian mass extinction was the deadliest event in Earth’s history. Also called the Great Dying, it is thought to have nearly wiped out all life on Earth 252 million years ago.

The end-Permian mass extinction, which occurred approximately 252 million years ago, wiped out over 80% of marine species, and its impact on land has long been debated.

(CNN) — A cataclysm engulfed the planet some 252 million years ago, wiping out more than 90% of all life. Known as the Great Dying, the mass extinction that ended the Permian geological period ...