Two “exceptionally large” feathered dinosaurs have been discovered in a quarry in South Dakota, a find that may help answer some crucial questions about life in the ancient West.
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Allosaurus Died From Stegosaur Spike to the Crotch, Wyoming Fossil Shows
Analysis of an Allosaurus fossil from southern Wyoming shows that the giant meat-eater died from a painful wound that appears to be unique in the fossil record: a deep stab…
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