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At the end of which geologic era did a large mass extinction take place that wiped out more than 90% of all marine life?
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Aug 16, 2017
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At the end of which geologic era did a large mass extinction take place that wiped out more than 90% of all marine life?
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The Permian-Triassic extinction, otherwise known as the End Permian or Great Dying occurred around 252 Megaannus.
Abdul Hoque Nuri
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Aug 22, 2017
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