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A team of researchers has discovered a new species of hadrosaur, a type of duck-billed dinosaur that once roamed the North Slope of Alaska in herds, living in darkness for months at a time and probably experiencing snow. Ugrunaaluk kuukpikensis grew up to 30 feet long and was a superb chewer with hundreds of individual teeth well-suited for eating coarse vegetation.
The majority of bones used in the study came from the Liscomb Bone Bed, a fossil-rich layer along the Colville River in the Prince Creek Formation, a unit of rock deposited on the Arctic flood plain about 69 million years ago.Image credit: Painting by James Havens
