Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs

doi:10.1080/02724634.2021.2028796

IVPP-IR > 中科院古脊椎所（2000年以后）

	Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs
	Yang, Zixiao 1,2; Benton, Michael J.3; Hone, David W. E.4; Xu, Xing5 ; McNamara, Maria E.2,6; Jiang, Baoyu 1
	2021-09-03
发表期刊	JOURNAL OF VERTEBRATE PALEONTOLOGY
ISSN	0272-4634
卷号	41 期号:5 页码:16
摘要	Anurognathids are a clade of non-pterodactyloid pterosaurs with generally conservative morphology, but specializations as insectivores. They are represented by a disparate collection of adult and juvenile specimens that range in wingspan from similar to 0.24-1 m. There have been concerns about the extent to which ontogenetic variation might affect phylogenetic inference, and indeed how aspects of their ontogeny might relate to the distinctive anurognathid adult morphology. Here we perform allometric analysis on 23 key skeletal dimensions in 13 anurognathid specimens. Our results show that all anurognathids share a common growth trajectory in most dimensions, and that ontogeny affects variation in a minority of characters commonly used in phylogenetic analysis. Excluding these ontogeny-related characters, a new taxon, Cascocauda rong gen. et sp. nov., is established. Based on the ontogenetically corrected dataset, our phylogenetic analysis supports Anurognathidae as the sister-group of Breviquartossa and reveals a general trend of tail reduction in the clade. Allometric growth suggests the anurognathid lifestyle remained consistent throughout ontogeny, maintaining a highly maneuverable flight style by near-isometric development in the wing, small prey (i.e., insects), by strong negative allometry in the skull, and an arboreal habit by strong positive allometry in the claws. This specialized lifestyle suggests retention of plesiomorphic juvenile traits into later ontogeny and facilitated morphological stasis by stabilizing selection during over 40 million years of evolution in the group.
DOI	10.1080/02724634.2021.2028796
关键词[WOS]	MISSING VALUES ; EVOLUTION ; TAXONOMY ; CTENOCHASMA ; DIVERSITY ; LIMESTONE ; REVISION ; ANATOMY ; GERMANY ; GROWTH
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41672010] ; Chinese Academy of Sciences[XDB26000000]
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000764015100001
出版者	TAYLOR & FRANCIS INC
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/21450
专题	中科院古脊椎所（2000年以后）
通讯作者	Jiang, Baoyu
作者单位	1.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 2.Univ Coll Cork, Sch Biol Earth & Environm Sci, Cork T23 TK30, Ireland 3.Univ Bristol, Sch Earth Sci, Life Sci Bldg,Tyndall Ave, Bristol BS8 1TQ, Avon, England 4.Queen Mary Univ London, Sch Biol & Behav Sci, Mile End Rd, London E1 4NS, England 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 6.Environm Res Inst, Lee Rd, Cork T23 XE10, Ireland
推荐引用方式 GB/T 7714	Yang, Zixiao,Benton, Michael J.,Hone, David W. E.,et al. Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2021,41(5):16.
APA	Yang, Zixiao,Benton, Michael J.,Hone, David W. E.,Xu, Xing,McNamara, Maria E.,&Jiang, Baoyu.(2021).Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs.JOURNAL OF VERTEBRATE PALEONTOLOGY,41(5),16.
MLA	Yang, Zixiao,et al."Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs".JOURNAL OF VERTEBRATE PALEONTOLOGY 41.5(2021):16.

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