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Fossils show quick rebound of life after ancient mass extinction

Handout of an artist's depiction of the diversified and complex Early Triassic marine ecosystem of southeastern IdahoBy Will Dunham WASHINGTON (Reuters) - Fossils including sharks, sea reptiles and squid-like creatures dug up in Idaho reveal a marine ecosystem thriving relatively soon after Earth's worst mass extinction, contradicting the long-held notion life was slow to recover from the calamity. Scientists on Wednesday described the surprising fossil discovery showing creatures flourishing in the aftermath of the worldwide die-off at the end of the Permian Period about 252 million years ago that erased roughly 90 percent of species.




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