PHOTOS: Top Ten New Species of 2007 Named

PHOTOS: Top Ten New Species of 2007 Named
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2. Giant Duck-Billed Dinosaur

Discovered by high school students in southern Utah in 2002, the above fossil dates back 75 million years and is one of the largest duck-billed dinosaurs ever found.

The massive skull was found to belong to a new species, Gryposaurus monumentensis, in 2007.

The International Institute for Species Exploration (IISE) added the duck-billed dinosaur to its list of top ten new species of 2007, which was released in May 2008.

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—Photograph courtesy International Institute for Species Exploration/Arizona State University
 
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