The most extensive fossil forests of their kind in the world, they contain much information about the climate and geologic history of the Rocky Mountain region some 55 million years ago ...
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6,000-Year-Old Pine Forest Revealed Under Melting Yellowstone IceThe fossilized remains of Whitebark pine trees found beneath a melting ice patch in the Yellowstone region were once part of an ancient forest that thrived for centuries before disappearing ...
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