Fossils document evolutionary changes of jaw joint to mammalian middle ear

doi:10.1038/s41586-024-07235-0

IVPP-IR

	Fossils document evolutionary changes of jaw joint to mammalian middle ear
	Mao, Fangyuan 1,2; Zhang, Chi 1; Ren, Jicheng 1; Wang, Tao 3; Wang, Guofu 4; Zhang, Fakui 1; Rich, Thomas 5,6; Vickers-Rich, Patricia 5,6,7; Meng, Jin2,8
	2024-04-18
发表期刊	NATURE
ISSN	0028-0836
卷号	628 期号:8008 页码:21
通讯作者	Mao, Fangyuan(maofangyuan@ivpp.ac.cn) ; Meng, Jin(jmeng@amnh.org)
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.
DOI	10.1038/s41586-024-07235-0
关键词[WOS]	OSSIFIED MECKELS CARTILAGE ; DIVERSIFICATION ; TRANSFORMATION ; TRANSITION ; DOCODONT ; ORIGIN
收录类别	SCI
语种	英语
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]
项目资助者	National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001327576000001
出版者	NATURE PORTFOLIO
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/24066
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.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing, Peoples R China 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 3.Bur Land & Resources Lufeng Cty, Lufeng, Peoples R China 4.Fossil Res Ctr Chuxiong Prefecture, Chuxiong, Peoples R China 5.Museums Victoria, Melbourne, Vic, Australia 6.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic, Australia 7.Curtin Univ, Sch Earth & Planetary Sci, Perth, WA, Australia 8.CUNY, Grad Ctr, Earth & Environm Sci, New York, NY 10016 USA
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.