During the Permian-Triassic extinction, Inostrancevia, a saber-toothed predator, emerged as a dominant force. Fossils ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period.

Beneath the towering Guadalupe Mountains of Texas lies a dramatic story of transformation. Once part of an ancient sea, the fossilized Capitan Reef now forms craggy peaks and iconic cliffs like El ...

The fossil seems to date back toward the end of the Carboniferous period and into the Permian period, which took place about 300 million years ago, Calder told the news agency. Those time periods ...

For years, a mysterious fossil specimen defied categorization, until one paleontologist made a surprising discovery.

In addition to the fossil record, scientists understand ... Toward the end of the Permian period, Earth was reeling from cataclysmic volcanic activity in modern-day Siberia, which ushered in ...

Amos The iconic arthropods of the Cambrian were the trilobites, which left a huge number of fossils ... the mega-extinction that ended the Permian period 251 million years ago.

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