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Press Release 09-126

Sudden Collapse in Ancient Biodiversity: Was Global Warming the Culprit?

Scientists discover early warning signs of ecosystems at risk

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Photo of ancient fossil leaves.

Ancient fossil leaves tell a story of sudden loss of biodiversity that may have future parallels.

Credit: John Weinstein, The Field Museum


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Photo of the researchers collecting fossil leaves from a site in East Greenland.

Fossil leaves were collected by the research team from a site in East Greenland.

Credit: Ian Glasspool, The Field Museum


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Cover of June 19, 2009 Science magazine.

The researchers' findings are published in the June 19, 2009, issue of the journal Science.

Credit: Copyright 2009 AAAS


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