Cryolophosaurus
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Cryolophosaurus was the first named dinosaur from Antarctica. Paleontologists found this dinosaur's fossilized bones relatively close to the South Pole, and during excavation in an Antarctica summer, they endured temperatures that rarely rose above -4 degrees Fahrenheit. This fossil features a prominent crest on the top of its head and, as an adult, it would have been more than 21 feet long and nearly 1000 pounds.

Cryolophosaurus is one of the fully-articulated specimens in Ultimate Dinosaurs: Giants from Gondwana, which opens at the Science Museum of Minnesota on March 1, 2014. The exhibition features a new and unusual breed of dinosaurs that evolved in isolation in the Southern Hemisphere.

Credit: © 2011 Royal Ontario Museum