併蹠骨（英語：arctometatarsal）或稱夾跖，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]。
參考資料
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