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Patagonian fossil leaves reveal rapid recovery from dinosaur extinction event

11/8/2016

UNIVERSITY PARK, Pa. — Ancient feeding marks from hungry insects in South American leaf fossils are shedding new light on the mass extinction that wiped out the dinosaurs.

Scientists analyzed insect feeding damage to thousands of leaf fossils from Patagonia, Argentina, over the Cretaceous-Paleogene boundary, and found evidence that ecosystems there recovered twice as fast as in the United States.

The findings, published today (Nov. 7) in the new journal Nature Ecology & Evolution, offer important evidence of how terrestrial ecosystems outside the U.S. responded after an asteroid struck Chicxulub, Mexico, some 66 million years ago, marking the end of the Cretaceous period.  More

https://www.theguardian.com/science/2016/nov/07/southern-hemisphere-fast...

http://www.nature.com/articles/s41559-016-0012

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