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Some Dinos' Teeth Rivaled Mammals' for Plant-Chewing (1 of 5)

Caption: This is the horse-like chewing surface in a hadrosaurid dental battery. The crests and basins form through differential wear of the dental tissues. This image relates to a paper that appeared in the Oct. 5, 2012, issue of Science, published by AAAS. The paper, by Gregory Erickson at Florida State University in Tallahassee, Fla., and colleagues was titled, "Complex Dental Structure and Wear Biomechanics in Hadrosaurid Dinosaurs."

Credit: Image courtesy of Gregory M. Erickson, Ph. D., Florida State University

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