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 Permian period wasn’t just ancient history—it was a full-blown nightmare. From supervolcanoes to the deadliest mass extinction Earth has ever seen, this era was a nonstop survival challenge.

The Great Dying marks the transition from the Permian to the Triassic period, so it’s often referred to as the Permian-Triassic mass extinction, or the Permian-Triassic Boundary. If “Triassic ...

For millions of years after the end-Permian mass extinction, the same few marine survivor species show up as fossils all over the planet. A new study reveals what drove this global biological ...

More than 17,000 species are known to have survived until the mega-extinction that ended the Permian period 251 million years ago. A predator of the Cambrian was the giant, shrimplike Anomalocaris ...

Some areas in the Permian have hit geological limits while others, yet to be drilled, are not expected to be as prolific as ...

Nobu Tamura/Wikimedia Commons The Triassic Period (252-201 million years ago) began after Earth's worst-ever extinction event devastated life. The Permian-Triassic extinction event, also known as the ...

Life in the Triassic period had a rough start. In the Permian period before, the largest mass extinction event in Earth’s history had just taken place. Despite the widespread devastation ...

Permian Resources Corporation ("Permian Resources" or the "Company") (NYSE: PR) announced today that it will report first quarter ...

Earnings Per Share (TTM) A company's net income for the trailing twelve month period expressed as a dollar amount per fully diluted shares outstanding. Market Capitalization Reflects the total ...