A new study reveals that Earth's biomes changed dramatically in the wake of mass volcanic eruptions 252 million years ago.

About 250 million years ago, at the end of the Permian period ... in time, heading for the Permian's conclusion. If we had driven here before the extinction, we would have seen animals as abundant ...

Learn more about a time period marked ... of all prehistoric animals. More than 17,000 species are known to have survived until the mega-extinction that ended the Permian period 251 million ...

This period ... that time period, but at 21 percent it was far lower than at much of the rest of the planet. Because the ...

The period of time before the Triassic was called the Permian. This was a time when a wide variety of animals lived, including a group of animals called the synapsids, which would later evolve ...

Nobu Tamura/Wikimedia Commons The Triassic Period (252-201 million years ago) began after Earth's worst-ever extinction event devastated life. The Permian ... at this time, such as aetosaurs,' says ...

What followed was a mysterious, multimillion-year span that could be called the "Great Dulling," when marine animal communities ... Toward the end of the Permian period, Earth was reeling from ...

The findings challenge one prevailing theory about the Permian ... during that time period, but at 21 percent it was far lower than at much of the rest of the planet. Because the plant oasis persisted ...