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John R. Horner
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John R. Horner

American paleontologist

Learn about this topic in these articles:

contribution to paleontology

  • dinosaurs to scale
    In dinosaur: Reproduction

    In 1978 John R. Horner and his field crews from Princeton University discovered dinosaur nests in western Montana. A few other finds, mostly of eggshell fragments from a number of sites, established oviparity as the only known mode of reproduction. In recent years an increasing number of…

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