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 ...

The region's ancient landscape revealed a wealth of fossilized ... painting a vivid picture of life during the Permian period. The exploration of the site required innovative techniques.

The Permian period’s mass extinction had wiped out ... the Triassic – Jurassic and Cretaceous – and ruled Earth’s landscape for 165 million years. Some, like the Tyrannosaurus rex, emerged ...

Scientists later confirmed these were fossilized tracks of five prehistoric species from the Permian Period. The fossils tell the tale of a world on the brink. During the Permian Period ...