noun
a geologic period that occurred approximately 299 to 251 million years ago, known for its diverse plant and animal life
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The Permian period is known for its vast biodiversity and the emergence of many new species.
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The Permian era was like a huge party for all the different kinds of animals.
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The Permian was poppin' with all sorts of cool creatures back in the day.
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The Permian was a time when life on Earth was really hitting its stride, like a well-oiled machine.