Earth, mass extinction

About 252 million years ago, 80 to 90 percent of life on Earth was wiped out. In the Turpan-Hami Basin, life persisted and ...
The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth.
unstable resource availability on land. The end-Permian mass extinction event, 252 million years ago, was the largest ever, marked by the loss of as many as 90% of species. A key line of research ...