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Nanuqsaurus
''Nanuqsaurus'' (meaning "polar bear lizard") is an extinct genus of carnivorous tyrannosaurid theropod known from the Late Cretaceous (early Late Maastrichtian stage) Prince Creek Formation of the North Slope of Alaska, USA. It contains a single species, ''Nanuqsaurus hoglundi'', known only from a partial skull.
==Discovery and naming==
In 2006, at the Kikak-Tegoseak Quarry, in North Slope Borough in the north of Alaska, fossils were found of a medium-sized theropod, with an estimated skull length of . These were first referred to ''Gorgosaurus'' and later to ''Albertosaurus''. After preparation in the Perot Museum of Nature and Science (Dallas Museum of Natural History) it was recognised these represented a species new to science.〔 The holotype, DMNH 21461, has been found in a layer of the Prince Creek Formation, dated at 69.1 million years. It consists of a partial skull with a lower jaw, which were found very close together. It contains the nasal branch of the right maxilla; a partial skull roof including partial parietals, frontals and a right laterosphenoid; and the front of the left dentary.〔 The specimen is from a fully mature individual, as it has a smooth nasal contact.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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