威斯尼斯人

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威斯尼斯人:论文

论文题目 Fossils document evolutionary changes of jaw joint to mammalian middle ear
作  者 Fangyuan Mao; Chi Zhang, Jicheng Ren, Tao Wang, Guofu Wang, Fakui Zhang, Thomas Rich, Patricia Vickers-Rich & Jin Meng
发表年度 2024
刊物名称 Nature
卷、期、页码 ; ;
影响因子
论文摘要

The dual jaw joint of Morganucodon1,2 consists of the dentary–squamosal joint laterally and the articular–quadrate one medially. The articular–quadrate joint and its associated post-dentary bones constitute the precursor of the mammalian middle ear. Fossils documenting the transition from such a precursor to the mammalian middle ear are poor, resulting in inconsistent interpretations of this hallmark apparatus in the earliest stage of mammaliaform evolution1,2,3,4,5. Here we report mandibular middle ears from two Jurassic mammaliaforms: a new morganucodontan-like species and a pseudotribosphenic shuotheriid species