Sea turtle fossil at National Museum of Natural History. Washington, DC.

Sea turtle fossil (<i>Protostega gigas</i>) (Late Cretaceous 80-70 million years ago) at National Museum of Natural History. Washington, DC.

Sea turtle fossil (Protostega gigas) (Late Cretaceous 80-70 million years ago) at National Museum of Natural History. Washington, DC.
Photo by Jim Steinhart © 2013, all rights reserved. (Ref: DCMN053)

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Smithsonian National Museum of Natural History, Washington, DC