Long before T. rex, the Earth was dominated by super-carnivores stranger and more terrifying than anything dreamed up by Hollywood.

During the Permian era, animal and plant life were dispersed broadly across Pangea, and a new study supports the idea that there was an isolated desert in the middle of Pangea with its own fauna ...

The Permian-Triassic extinction, also known as the Great Dying, was the most devastating event in Earth’s history. 96% of marine life and 70% of terrestrial vertebrates vanished around 252 ...

The Permian, however, represented the last gasp for much early prehistoric life. The period, and the Paleozoic era, came to a calamitous close 251 million years ago, marking a biological dividing ...

The Permian-Triassic boundary (251m years ago) saw the greatest crisis in Earth’s history, when at least 90% of species died off. Even insects suffered huge losses – the only mass extinction ...

“Life on Earth had to adjust to repeated changes in climate and the carbon cycle for several million years after the Permian-Triassic Boundary,” lead author Maura Brunetti, a researcher in the ...

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 was the ...

It catapulted nearly all life to an end, obliterating more than 90 percent of the world's species at the time. What caused this die-off, called the Permian extinction or the Great Dying, is still ...

T wo years ago the San Pedro Valley desert east of Arizona’s Santa Catalina Mountains was inhabited by little more than coyotes and cactus. But after Magma Copper Co. proved up the nation’s ...