permian
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Oldest Fossilized Skin Discovered, Clocks in at 300 Million Years Old
Researchers believe they’ve found the oldest known fossilized skin, hidden away in a limestone cave system in Oklahoma. The skin sample dates to the early Permian Period, between 289 million years ago and 286 million years ago. The skin belonged to an ancient reptile and is epidermis—the outer layer of skin in amniotes, a group…
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Volcanic Eruptions May Have Helped Some Life Forms Survive An Apocalypse
Volcanoes are often painted as harbingers of destruction — and for good reason. But sometimes, they can help life survive, by feeding energy-starved ecosystems elemental carbon.