ialsoagree t1_j7ztyk6 wrote
Reply to comment by Wagamaga in The discovery of fossils dating back 250.8 million years near the Guizhou region of China suggests that complex ecosystems were present on Earth just one million years after the Permian-Triassic mass extinction, which is much earlier than previously thought. by Wagamaga
Fun/scary fact: the Permian-Triassic extinction was caused in part by coal burning which increased atmospheric CO2.
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