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Archaeopteryx |
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| This fossil cast shows the remains of an archaeopteryx, a birdlike dinosaur. It had teeth and a long, reptilelike tail covered with feathers. The archaeopteryx lived about 150 million years ago during the Jurassic Period of the Mesozoic Era. | ||||||
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| Sinclair Stammers/Science Library/Photo Researchers, Inc. | ||||||
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| Appears in these articles: | ||||||
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| Evolution; Comparative Anatomy; Archosaur; Archaeopteryx | ||||||
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