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Evolution of the vomer and its implications for cranial kinesis in Paraves

文献类型:期刊论文

作者Hu, Han1; Sansalone, Gabriele1; Wroe, Stephen1; McDonald, Paul G.1; O'Connor, Jingmai K.2,3; Li, Zhiheng2,3; Xu, Xing2,3; Zhou, Zhonghe2,3
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2019-09-24
卷号116期号:39页码:19571-19578
ISSN号0027-8424
关键词cranial kinesis palate stem birds Neornithes Jehol
DOI10.1073/pnas.1907754116
英文摘要Most living birds exhibit cranial kinesis-movement between the rostrum and braincase-in which force is transferred through the palatal and jugal bars. The palate alone distinguishes the Paleognathae from the Neognathae, with cranial kinesis more developed in neognaths. Most previous palatal studies were based on 2D data and rarely incorporated data from stem birds despite great interest in their kinetic abilities. Here we reconstruct the vomer of the Early Cretaceous stem bird Sapeornis and the troodontid Sinovenator, taxa spanning the dinosaur-bird transition. A 3D shape analysis including these paravians and an extensive sampling of neornithines reveals their strong similarity to paleognaths and indicates that morphological differences in the vomer between paleognaths and neognaths are intimately related to their different kinetic abilities. These results suggest the skull of Mesozoic paravians lacked the kinetic abilities observed in neognaths, a conclusion also supported by our identification of an ectopterygoid in Sapeornis here. We conclude that cranial kinesis evolved relatively late, likely an innovation of the Neognathae, and is linked to the transformation of the vomer. This transformation increased palatal mobility, enabling the evolution of a diversity of kinetic mechanisms and ultimately contributing to the extraordinary evolutionary success of this clade.
WOS关键词R PACKAGE ; PALAEOGNATHOUS BIRDS ; SKULL ; SHAPE ; HESPERORNIS ; KINEMATICS ; MORPHOLOGY ; PHYLOGENY ; PALATINUM ; THEROPOD
资助项目National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41688103] ; University of New England ; University of New England ; State Key Laboratory of Paleobiology and Stratigraphy ; State Key Laboratory of Paleobiology and Stratigraphy ; Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences[183110] ; Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences[183110]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATL ACAD SCIENCES
WOS记录号WOS:000487532900055
源URL[http://119.78.100.205/handle/311034/10268]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Hu, Han; Zhou, Zhonghe
作者单位1.Univ New England, Sch Environm & Rural Sci, Zool Div, Armidale, NSW 2351, Australia
2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 10010, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 10010, Peoples R China
推荐引用方式
GB/T 7714
Hu, Han,Sansalone, Gabriele,Wroe, Stephen,et al. Evolution of the vomer and its implications for cranial kinesis in Paraves[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(39):19571-19578.
APA Hu, Han.,Sansalone, Gabriele.,Wroe, Stephen.,McDonald, Paul G..,O'Connor, Jingmai K..,...&Zhou, Zhonghe.(2019).Evolution of the vomer and its implications for cranial kinesis in Paraves.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(39),19571-19578.
MLA Hu, Han,et al."Evolution of the vomer and its implications for cranial kinesis in Paraves".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.39(2019):19571-19578.

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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