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Altirhinus
''Altirhinus'' (; "high snout") is a genus of iguanodontian ornithopod dinosaur from the Early Cretaceous Period of Mongolia. ==Description== ''Altirhinus'' was herbivorous and bipedal when walking or running, but probably became quadrupedal when feeding from the ground. According to the original description, the entire body probably extended 8 m from snout to tail tip. In 2010 Gregory S. Paul estimated the length at 6.5 metres (21 ft), the weight at 1.1 tonnes.〔Paul, G.S., 2010, ''The Princeton Field Guide to Dinosaurs'', Princeton University Press p. 291〕 The skull alone is about 760 mm long, with a wide mouth and a distinctive tall arch on top of its snout, from which this dinosaur derives its name.
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「Altirhinus」の詳細全文を読む
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