Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs
文献类型：期刊论文
| 作者 | Yang, Zixiao5,6; Benton, Michael J.4; Hone, David W. E.3; Xu, Xing2 ; McNamara, Maria E.1,5; Jiang, Baoyu6
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| 刊名 | JOURNAL OF VERTEBRATE PALEONTOLOGY
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| 出版日期 | 2021-09-03 |
| 页码 | 16 |
| ISSN号 | 0272-4634 |
| DOI | 10.1080/02724634.2021.2028796 |
| 通讯作者 | Jiang, Baoyu(byjiang@nju.edu.cn) |
| 英文摘要 | 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. |
| WOS关键词 | MISSING VALUES ; EVOLUTION ; TAXONOMY ; CTENOCHASMA ; DIVERSITY ; LIMESTONE ; REVISION ; ANATOMY ; GERMANY ; GROWTH |
| 资助项目 | National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41672010] ; Chinese Academy of Sciences[XDB26000000] ; China Scholarship Council[201906190142] ; program A for Outstanding PhD candidate of Nanjing University[202002A028] |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS INC |
| WOS记录号 | WOS:000764015100001 |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences ; China Scholarship Council ; program A for Outstanding PhD candidate of Nanjing University |
| 源URL | [http://119.78.100.205/handle/311034/21449]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Jiang, Baoyu |
| 作者单位 | 1.Environm Res Inst, Lee Rd, Cork T23 XE10, Ireland 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 3.Queen Mary Univ London, Sch Biol & Behav Sci, Mile End Rd, London E1 4NS, England 4.Univ Bristol, Sch Earth Sci, Life Sci Bldg,Tyndall Ave, Bristol BS8 1TQ, Avon, England 5.Univ Coll Cork, Sch Biol Earth & Environm Sci, Cork T23 TK30, Ireland 6.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China |
| 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,2021:16. |
| 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,16. |
| MLA | Yang, Zixiao,et al."Allometric analysis sheds light on the systematics and ontogeny of anurognathid pterosaurs".JOURNAL OF VERTEBRATE PALEONTOLOGY (2021):16. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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