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The fossils were discovered in northern Alaska that at one time were covered by huge forests with lots of plants, as the weather used to be a warmer climate.

According to Mark Norell, curator of paleontology at the American Museum of Natural History in New York, although it was highly possible that there were dinosaurs who lived in the high Arctic like caribou and musk oxen, it was hard to imagine how small and juvenile dinosaurs were...

Researchers also believe the dinosaur was a variety of hadrosaur, a duck-billed dinosaur that roamed in herds. During the late Cretaceous period much of Alaska was covered in relatively temperate polar forests that were heavily populated by deciduous trees, which lose their...

The mattress is known as for geologist Robert Liscomb, who discovered the primary dinosaur bones in Alaska in 1961 whereas mapping for Shell Oil Co. Researchers teased out differences in the Alaska fossils, Druckenmiller said, by plotting growth trajectories and by comparing them...

The bones were first uncovered by geologist Robert Liscomb, who stumbled upon them while mapping along the Colville River for Shell Oil Company in 1961.