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''Buitreraptor'' is a predatory dromaeosaurid theropod dinosaur from the Cretaceous of Argentina. ''Buitreraptor'' was described in 2005. The type species is ''Buitreraptor gonzalezorum''. It was rooster-sized and had a very elongated head with many small teeth. ==Description== ''Buitreraptor'' was a rather small dinosaur. In 2010, Gregory S. Paul estimated the length at 1.5 metres, the weight at three kilograms.〔Paul, G.S., 2010, ''The Princeton Field Guide to Dinosaurs'', Princeton University Press p. 139〕 ''Buitreraptor'' has some different physical features than typical northern dromaeosaurs, such as ''Velociraptor''. ''Buitreraptor'' has a slender, flat, extremely elongated snout with many small teeth that lack meat-tearing serrations or cutting edges and are grooved, strongly recurved and flattened. From this, the scientists who initially described it concluded that this dinosaur was not a hunter of relatively large animals like some other dromaeosaurs, but rather a hunter of small animals such as lizards and mammals. The forelimbs of ''Buitreraptor'' were long and ending in hands with three fingers. The fingers were proportionarly shorter than in other dromaeosaurids, and of essentially the same length, contrary to most of its relatives, which had fingers of different length, with the second finger being considerably longer. The body as a whole was also very elongated, with a shallow ribcage. The sickle claw at the second toe of the foot was relatively short and broad. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Buitreraptor」の詳細全文を読む スポンサード リンク
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