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Smithsonian Magazine on MSNA Bone Bed From the Dawn of the Dinosaurs Has Revealed the Oldest Known Pterosaur Found in North AmericaThe painted desert of Arizona’s Petrified Forest National Park is a fossil wonderland. Scattered through the sunbeaten rock ...
Molecules from the 20-million-year-old teeth of a rhino relative are among the oldest ever sequenced, opening tantalizing ...
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