First Edentulous Enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Jehol Avifauna
文献类型：期刊论文
| 作者 | Wang, Xiaoli5,6,7; Clark, Alexander3,4; O'Connor, Jingmai K.3; Zhang, Xiangyu6,7; Wang, Xing6,7; Zheng, Xiaoting6,7; Zhou, Zhonghe1,2
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| 刊名 | CRETACEOUS RESEARCH
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| 出版日期 | 2024-07-01 |
| 卷号 | 159页码:14 |
| 关键词 | Enantiornithines Edentulism Tooth loss Mesozoic birds Lower Cretaceous Jehol biota Paleoecology |
| ISSN号 | 0195-6671 |
| DOI | 10.1016/j.cretres.2024.105867 |
| 通讯作者 | Clark, Alexander(adclark@uchicago.edu) |
| 英文摘要 | Among Mesozoic birds, enantiornithines exhibit great morphological variation, which likely reflects their species diversity, range, and overall success throughout the Cretaceous. The majority of enantiornithines come from the Lower Cretaceous Jehol deposits (130-120 Ma) in northeastern China. In contrast to living birds, most enantiornithines were fully toothed. However, the rostral lengths, appendicular proportions, and pedal morphologies of extant birds can still inform on possible diet, flight mode, and ecology. Both partial (e.g., Longipterygidae) and complete tooth loss (e.g., Yuornis, Gobipteryx) are observed among enantiornithines, with edentulous rostra previously restricted to Upper Cretaceous taxa. Here, we describe the first edentulous enantiornithine from the Lower Cretaceous, Imparavis attenboroughi gen. et sp. nov., indicating a toothless beak evolved in this group 48 Ma earlier than previously recognized. Additionally, we reinterpret Chiappeavis as edentulous which together with the discovery of Imparavis indicates the complete loss of teeth in enantiornithines was not uncommon although still less frequent than observed in ornithuromorphs. The absence of gastroliths in all known enantiornithines suggests that the loss of teeth evolved under different pressures in these two ornithothoracine clades. Differences in rostral occlusion between Imparavis and Chiappeavis suggest they utilized different foraging strategies and possibly diet. Appendicular morphology in Imparavis suggest the capacity for relatively high wing beat frequency and powerful take -off capabilities. Together with the morphology of the hindlimb, we suggest Imparavis was primarily a terrestrial forager that could utilize sudden bursts of flight to escape into arboreal settings as a prey evasion strategy. (c) 2024 Elsevier Ltd. All rights reserved. |
| WOS关键词 | LEG MORPHOLOGY ; BIRD AVES ; BODY-SIZE ; CHINA ; EVOLUTION ; ANATOMY ; DIVERSITY ; SPECIMEN ; PROVINCE ; INSIGHT |
| WOS研究方向 | Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001209607100001 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.205/handle/311034/23612]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Clark, Alexander |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 3.Field Museum Nat Hist, Negaunee Integrat Resource Ctr, 1400 S Dusable Lake Shore Dr, Chicago, IL 60605 USA 4.Univ Chicago, Comm Evolutionary Biol, Chicago, IL 60637 USA 5.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China 6.Shandong Tianyu Museum Nat, Pingyi 273300, Peoples R China 7.Linyi Univ, Inst Geol & Paleontol, Linyi 276005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaoli,Clark, Alexander,O'Connor, Jingmai K.,et al. First Edentulous Enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Jehol Avifauna[J]. CRETACEOUS RESEARCH,2024,159:14. |
| APA | Wang, Xiaoli.,Clark, Alexander.,O'Connor, Jingmai K..,Zhang, Xiangyu.,Wang, Xing.,...&Zhou, Zhonghe.(2024).First Edentulous Enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Jehol Avifauna.CRETACEOUS RESEARCH,159,14. |
| MLA | Wang, Xiaoli,et al."First Edentulous Enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Jehol Avifauna".CRETACEOUS RESEARCH 159(2024):14. |
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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