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Contact: Steve Koppes
University of Chicago

Head-to-Head Comparison

Caption: Skull of the parrot-beaked dinosaur, Psittacosaurus gobiensis, next to that of a living macaw.

Credit: Mike Hettwer

Usage Restrictions: News organizations may use this image in reports describing the research of Paul Sereno and his associates.

Related news release: Sands of Gobi Desert yield new species of nut-cracking dinosaur

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