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Fossils document evolutionary changes of jaw joint to mammalian middle ear

文献类型：期刊论文

作者Mao, Fangyuan7,8; Zhang, Chi8; Ren, Jicheng8; Wang, Tao6; Wang, Guofu5; Zhang, Fakui8; Rich, Thomas3,4; Vickers-Rich, Patricia2,3,4; Meng, Jin1,7
刊名NATURE
出版日期2024-04-18
卷号628期号:8008页码:21
ISSN号0028-0836
DOI10.1038/s41586-024-07235-0
通讯作者Mao, Fangyuan(maofangyuan@ivpp.ac.cn) ; Meng, Jin(jmeng@amnh.org)
英文摘要The dual jaw joint of Morganucodon(1,2) 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 evolution(1-5). Here we report mandibular middle ears from two Jurassic mammaliaforms: a new morganucodontan-like species and a pseudotribosphenic shuotheriid species(6). The morganucodontan-like species shows many previously unknown post-dentary bone morphologies(1,2) and exhibits features that suggest a loss of load-bearing function in its articular-quadrate joint. The middle ear of the shuotheriid approaches the mammalian condition in that it has features that are suitable for an exclusively auditory function, although the post-dentary bones are still attached to the dentary. With size reduction of the jaw-joint bones, the quadrate shifts medially at different degrees in relation to the articular in the two mammaliaforms. These changes provide evidence of a gradual loss of load-bearing function in the articular-quadrate jaw joint-a prerequisite for the detachment of the post-dentary bones from the dentary(7-12) and the eventual breakdown of the Meckel's cartilage(13-15) during the evolution of mammaliaforms.
WOS关键词OSSIFIED MECKELS CARTILAGE ; DIVERSIFICATION ; TRANSFORMATION ; TRANSITION ; DOCODONT ; ORIGIN
资助项目National Natural Science Foundation of China[42122010] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42072002] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2019076]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001327576000001
出版者NATURE PORTFOLIO
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://119.78.100.205/handle/311034/24065]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Mao, Fangyuan; Meng, Jin
作者单位1.CUNY, Grad Ctr, Earth & Environm Sci, New York, NY 10016 USA
2.Curtin Univ, Sch Earth & Planetary Sci, Perth, WA, Australia
3.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic, Australia
4.Museums Victoria, Melbourne, Vic, Australia
5.Fossil Res Ctr Chuxiong Prefecture, Chuxiong, Peoples R China
6.Bur Land & Resources Lufeng Cty, Lufeng, Peoples R China
7.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA
8.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Mao, Fangyuan,Zhang, Chi,Ren, Jicheng,et al. Fossils document evolutionary changes of jaw joint to mammalian middle ear[J]. NATURE,2024,628(8008):21.
APA Mao, Fangyuan.,Zhang, Chi.,Ren, Jicheng.,Wang, Tao.,Wang, Guofu.,...&Meng, Jin.(2024).Fossils document evolutionary changes of jaw joint to mammalian middle ear.NATURE,628(8008),21.
MLA Mao, Fangyuan,et al."Fossils document evolutionary changes of jaw joint to mammalian middle ear".NATURE 628.8008(2024):21.

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来源：古脊椎动物与古人类研究所

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