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Permian Period.
The Permian Period was ended by the Permian/Triassic Extinction Event, which wiped out 90% of the species on Earth at that time.
Yes. Brachiopods were abundant in the Permian.
No, child, I was not a witness to the Permian Extinction.
The Permian extinction event is the only known mass extinction of insects.
The Permian extinction event occurred about 252 million years ago.
Permian High School was created in 1959.