What is Cryolophosaurus?
{{italictitle}} {{Taxobox | name = ''Cryolophosaurus'' | image = CryolophosaurusBrussels.jpg | image_width = 250px | fossil_range = [[Lower Jurassic]] | regnum = [[Animal]]ia | classis = [[Sauropsida]] | superordo = [[Dinosauria]] | ordo = [[Saurischia]] | subordo = [[Theropoda]] | infraordo = [[Tetanurae]] | genus = '''''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. ''Cryolophosaurus'' is also significant because it is the oldest known [[tetanuran]] from any continent: it is the only one from the early Jurassic. ''Cryolophosaurus'' had a large [[crest]] on the top of the skull, above the eyes. It extends upwards from the skull. ''Cryolophosaurus'' was found about {{convert|650|km|mi}} from the [[South Pole]] but then it was about {{convert|1000|km|0|abbr=on}} or so farther north.<ref name=Ham99>Hammer W.R. & Hickerson W.J. 1999. Gondwana dinosaurs from the Jurassic of Antarctica. In Tomida Y; Rich T.H. & Vickers-Rich Y. ''Proceedings of the Second Gondwana Dinosaur Symposium''. National Science Museum Monographs. '''15''': 211–217.</ref><ref>Dodson P. 1997. Paleoecology. In Currie P.J. & Padian K. ''Encyclopedia of dinosaurs''. Academic Press. {{ISBN|978-0-12-226810-6}}</ref> Also found were the remains of ''[[Glacialisaurus]]'' (a large [[basal]] [[sauropodomorph]]),<ref name=SP07>{{cite journal |last1=Smith |first1=Nathan D. |last2= Pol |first2=Diego |year=2007 |title=Anatomy of a basal sauropodomorph dinosaur from the Early Jurassic Hanson Formation of Antarctica |journal=Acta Palaeontologica Polonica |volume=52 |issue=4 |pages=657–674 |url=http://app.pan.pl/acta52/app52-657.pdf }}{{Dead link|date=Sep