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Photograph of the upper molar of 21 million-year-old Panamacebus.
Photograph of the upper molar of 21 million-year-old Panamacebus, the first-ever fossil evidence for monkeys recovered from the North American landmass.
Credit: Aldo Rincon, Florida Museum of Natural History
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.
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