Dinopedia
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John ostrom

John Harold Ostrom (February 18, 1928 - July 16, 2005), was an American paleontologist known for changing the modern understanding of dinosaurs by discovering the first evidence of feathers in dinosaurs; and proving that birds are in fact theropod dinosaurs. He also discovered and named Deinonychus and Tenontosaurus and formally named Microvenator. To many, he is responsible for what is known as the Dinosaur Renaissance in paleontology, with a large new understanding of prehistoric creatures.

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