Multimedia Gallery
June 18, 2009
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Ancient fossil leaves tell a story of sudden loss of biodiversity that may have future parallels.
Ancient fossil leaves tell a story of sudden loss of biodiversity that may have future parallels.
Credit: John Weinstein, The Field Museum
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Sudden Collapse in Ancient Biodiversity: Was Global Warming the Culprit?