Citing references, Longanecker said the Basin is named for the Permian Period 299 million to 251 million years ago, but it traces its origins to the Precambrian tectonic events of 1.3 billion to ...

The Permian period, which ended in the largest mass extinction the Earth has ever known, began about 299 million years ago. The emerging supercontinent of Pangaea presented severe extremes of ...

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.

(Phys.org)—The Permian geologic period that ended the Paleozoic era climaxed around 252 million years ago with a sweeping global mass extinction event in which 90 to 95 percent of marine life ...

As an extinction crisis wiped out species at the end of the Permian Period, a predatory species emerged that dominated Southern Africa’s domain. By Jeanne Timmons Some 252 million years ago, it ...

At the end of the Permian Period (252 million years ago), 96% of ocean life went extinct. We now know it was because of warming oceans that were devoid of oxygen and suffocated sea life around the ...

The massive extinctions that came at the end of the Permian period could have occurred within a mere 8,000 years, which suggests a catastrophic cause for the die-offs.