Cryolophosaurus
Cryolophosaurus is a theropod dinosaur from the Lower Jurassic period. It is the only theropod to be found in Antarctica. Cryolophosaurus was discovered in the Jurassic Hanson Formation in the Transantarctic Mountains. The find of this dinosaur was significant because it proves that the dinosaurs lived on all  continents and that high latitude climates were tolerated by dinosaurs at that time.