The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth.

3 min read The Cambrian period, part of the Paleozoic era, produced the most ... the world's oceans until they were wiped out in the Permian extinctions about 250 million years ago.

The transition in and out of the Late Paleozoic ice age was one of the ... It also paved the way for the rise of reptiles in the Permian period that followed. I lead an international team of ...

The Devonian, part of the Paleozoic era, is otherwise known as the Age of Fishes, as it spawned a remarkable variety of fish. The most formidable of them were the armored placoderms, a group that ...

Permian Resources generated a net profit of nearly $217 million in fourth-quarter 2024, down from $255 million in the same period a year earlier. Revenues rose 15% to $1.3 billion and operating ...