Decades of Discovery[removed]Why Dinosaurs Are Extinct

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Date: 2011-07-12 16:24:27 Planetary science Extinction events Climate history Dinosaurs Cretaceous Iridium Walter Alvarez Cretaceous–Tertiary extinction event Alvarez hypothesis Geologic time scale Phanerozoic Historical geology		Decades of Discovery[removed]Why Dinosaurs Are Extinct Add to Reading List Source URL: www.osti.gov Download Document from Source Website File Size: 80,82 KB Share Document on Facebook

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