'Diarthrognathus （页面存档备份，存于互联网档案馆） - Encyclopedia Britannica entry for Diarthrognathus</ref>。属名意为“两种关节的下颌”。双节颌兽的下颌同时具有哺乳类与爬行动物的特征，下颌关节同时由爬行动物的方骨与关节骨、以及哺乳动物的鳞状骨、齿骨组成[1]。
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