Middle ear innovation in Early Cretaceous eutherian mammals

doi:10.1038/s41467-023-42606-7

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	Middle ear innovation in Early Cretaceous eutherian mammals
	Wang, Haibing 1; Wang, Yuanqing1,2
	2023-10-26
发表期刊	NATURE COMMUNICATIONS
卷号	14 期号:1 页码:1-11
摘要	The middle ear ossicles in modern mammals are repurposed from postdentary bones in non-mammalian cynodonts. Recent discoveries by palaeontological and embryonic studies have developed different models for the middle ear evolution in mammaliaforms. However, little is known about the evolutionary scenario of the middle ear in early therians. Here we report a detached middle ear preserved in a new eutherian mammal from the Early Cretaceous Jehol Biota. The well-preserved articulation of the malleus and incus suggest that the saddle-shaped incudomallear joint is a major apomorphy of Early Cretaceous eutherians. By contrast to the distinct saddle-like incudomallear articulation in therians, differences between the overlapping versus the half-overlapping incudomallear joints in monotremes and stem mammals would be relatively minor. The middle ear belongs to the microtype by definition, indicating its adaptation to high-frequency hearing. Current evidence indicates that significant evolutionary innovations of the middle ear in modern therians evolved in Early Cretaceous. The evolution of the middle ear in early therians is unclear. Here, the authors report a reconstructed, detached middle ear in a eutherian mammal from the Early Cretaceous Jehol Biota, suggesting independent decoupling of hearing and chewing apparatuses.
DOI	10.1038/s41467-023-42606-7
关键词[WOS]	EVOLUTIONARY DEVELOPMENT ; JURASSIC MAMMALIAFORM ; YANLIAO BIOTA ; SHEDS LIGHT ; JEHOL BIOTA ; PHYLOGENY ; ORIGIN ; SKULL ; EUTRICONODONT ; MORPHOLOGY
收录类别	SCI
语种	英语
资助项目	Youth Innovation Promotion Association, CAS ; National Natural Science Foundation of China[XDB26000000] ; We thank W. Zhou for specimen preparation; Y. Hou and P. Yin for help with computed laminography scans and virtual reconstructions; Y. Chen and C. Zhao for help with drawing; T. Martin and J.A. Schultz for access to Guimarota specimens at the University of[42288201] ; We thank W. Zhou for specimen preparation; Y. Hou and P. Yin for help with computed laminography scans and virtual reconstructions; Y. Chen and C. Zhao for help with drawing; T. Martin and J.A. Schultz for access to Guimarota specimens at the University of[42272017] ; We thank W. Zhou for specimen preparation; Y. Hou and P. Yin for help with computed laminography scans and virtual reconstructions; Y. Chen and C. Zhao for help with drawing; T. Martin and J.A. Schultz for access to Guimarota specimens at the University of[41802005] ; Strategic Priority Research Program of the Chinese Academy of Sciences[2021068]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001091358000018
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/311034/23042
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Wang, Haibing; Wang, Yuanqing
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Haibing,Wang, Yuanqing. Middle ear innovation in Early Cretaceous eutherian mammals[J]. NATURE COMMUNICATIONS,2023,14(1):1-11.
APA	Wang, Haibing,&Wang, Yuanqing.(2023).Middle ear innovation in Early Cretaceous eutherian mammals.NATURE COMMUNICATIONS,14(1),1-11.
MLA	Wang, Haibing,et al."Middle ear innovation in Early Cretaceous eutherian mammals".NATURE COMMUNICATIONS 14.1(2023):1-11.

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