She believes that the Permian extinction was caused by acid rain following ... a dog and a lizard—the synapsids were Earth's first great dynasty of land vertebrates. "We've found fossils of ...

The end of Permian mass extinction occurred 251.9 million years ago, marking the close of a geological period known as ...

Though the End-Permian mass extinction event is predicted to have killed off 80% of all life on Earth, new research is ...

The Permian-Triassic extinction event, also known as the Great Dying, took place roughly 252 million years ago and was one of the most significant events in the history of our planet. It represents ...

Scientists don't call it the "Great Dying" for nothing. About 252 million years ago, upward of 80% of all marine species vanished during the end-Permian mass extinction—the most extreme event of ...

Artistic reconstruction of the terrestrial ecological landscape before the end Permian mass extinction based on fossil palynomorphs, plants , and tetrapods recovered, as well as sedimentological ...

Living Through "The Great Dying" About 250 million years ago ... The findings challenge one prevailing theory about the Permian mass extinction event. That theory claims that volcanic eruptions in ...

During the Permian-Triassic extinction, Inostrancevia, a saber-toothed predator, emerged as a dominant force. Fossils discovered in Russia and South Africa reveal its transcontinental existence ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers ... following Olson’s Extinction, a lesser-known mass extinction event that preceded the Permian-Triassic extinction.

Artistic reconstruction of the terrestrial ecological landscape after the end Permian mass extinction based on fossil palynomorphs, plants , and tetrapods recovered, as well as sedimentological ...