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Tiny fossils offer clues to 'dawn of the dinosaur era'

Jan 13, 2011 3:16:00 PM - chicagotribune.com
Two nasty looking little critters that roamed a remote valley of Argentina 230 million years ago point to a key fork in the road of early dinosaur evolution, when some predatory dinosaurs turned away from meat and went down a path to become plant eaters, according to the latest issue of the research journal Science.

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