These organisms are the ancestors of every living thing today. To paleontologists, the End-Permian Mass Extinction is the temporal boundary between the ancient paleozoic fauna and the modern fauna — a ...

About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species. Less than 5 percent of the animal species in the seas survived. On land ...

Beneath the soil of Majorca, a treasure from the Permian era has emerged. The remains of the oldest gorgonopsian ever discovered unveil the secrets of a formidable predator, at the crossroads ...

Chinese archaeologists on Friday announced the significant discovery of an early Permian tetrapod track assemblage known as the Mentougou fauna in the suburb of Beijing. Dating back approximately ...