Illustration of the fossilised bones of a Megalonyx jeffersonii ground sloth. Thomas Jefferson (the American founding father and President) made his c

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Illustration of the fossilised bones of a Megalonyx jeffersonii ground sloth. Thomas Jefferson (the American founding father and President) made his chief contribution to science in describing (1797) the first fossil of the giant ground sloth Megalonyx jeffersonii from West Virginia. Megalonyx means 'giant claw' (right).

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Size: 3789px × 2799px
Photo credit: © AMERICAN PHILOSOPHICAL SOCIETY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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