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来自维基百科,自由的百科全书
併蹠骨(英語:arctometatarsal)或称夹跖,是指動物的蹠骨近端被癒合在一起。這一特徵是高度非同源而相似的(homoplastic),在許多適於奔跑的恐龍中都能發現(如暴龍科、似鳥龍科和傷齒龍科)。這一結構可以使力量有效傳遞至蹠骨處[1][2]。
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