A new pterosaur from the early stage of the Jehol biota in China, with a study on the relative thickness of bone walls

doi:10.1016/j.heliyon.2023.e22370

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	A new pterosaur from the early stage of the Jehol biota in China, with a study on the relative thickness of bone walls
	Jiang, Shunxing 1; Song, Junyi 1,2; Zhang, Xinjun 1,2,3; Cheng, Xin 4; Wang, Xiaolin1,2
	2023-12-01
发表期刊	HELIYON
卷号	9 期号:12 页码:14
通讯作者	Jiang, Shunxing(jiangshunxing@ivpp.ac.cn) ; Wang, Xiaolin(wangxiaolin@ivpp.ac.cn)
摘要	The Huajiying Formation (135.4-128.7 Ma) of the northern Hebei represents the early stage of the Early Cretaceous Jehol Biota in China, yielding many kinds of vertebrates. The only known pterosaur specimen was incomplete and assigned to the Ornithocheiroidea. Here we report a more complete pterosaur specimen, assigned to the Ctenochasmatidae. A new taxon is established on two autapomorphies: a large pneumatic foramen present on the ventral surface of the proximal end of the first wing phalanx; and coracoid lacking an expansion at its contact with the scapula, as well as the following combination of characteristics: subsquare sternal plate; coracoid having an extremely concave articulation with a posterior expansion; humerus without a tubercle on the proximal margin between the deltopectoral crest and the head; humerus slightly longer than the wing metacarpal; and the first and third wing phalanges equal in length. The relative thicknesses of bone walls are investigated among pterosaurs in three ways. The overall distribution of R/t ratios shows that most non-pterodactyloids, archaeopterodactyloids, and dsungaripterids have smaller R/t ratios than other groups. Relatively thick bone walls are not unique for the Dsun-garipteridae as previously thought, and the humerus and radius of dsungaripterids have thinner walls than other bones. The feature of small R/t ratios is plesiomorphic and the thin-walled humerus and radius of dsungaripterids were evolved to meet the need of the flight, not for frequent take-off and landing as previously thought.
关键词	Cratonopterus Ctenochasmatidae Cretaceous Huajiying formation Jehol biota China Bone wall thickness
DOI	10.1016/j.heliyon.2023.e22370
关键词[WOS]	CRETACEOUS YIXIAN FORMATION ; TRIASSIC PTEROSAURS ; PTERODACTYLOIDEA ; ONTOGENY ; HISTOLOGY ; GROWTH ; CTENOCHASMATIDAE ; PALEOHISTOLOGY ; ASSEMBLAGES ; ARCHOSAURS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42072028] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42072017] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB26000000] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2019075] ; Scientific Research Foundation of Shenyang Normal University, China[BS202309]
项目资助者	National Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Scientific Research Foundation of Shenyang Normal University, China
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001127942500001
出版者	CELL PRESS
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23357
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Jiang, Shunxing; Wang, Xiaolin
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Shenyang Normal Univ, Coll Paleontol, Shenyang 110034, Peoples R China 4.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Shunxing,Song, Junyi,Zhang, Xinjun,et al. A new pterosaur from the early stage of the Jehol biota in China, with a study on the relative thickness of bone walls[J]. HELIYON,2023,9(12):14.
APA	Jiang, Shunxing,Song, Junyi,Zhang, Xinjun,Cheng, Xin,&Wang, Xiaolin.(2023).A new pterosaur from the early stage of the Jehol biota in China, with a study on the relative thickness of bone walls.HELIYON,9(12),14.
MLA	Jiang, Shunxing,et al."A new pterosaur from the early stage of the Jehol biota in China, with a study on the relative thickness of bone walls".HELIYON 9.12(2023):14.