Inner ear sensory system changes as extinct crocodylomorphs transitioned from land to water
文献类型：期刊论文
| 作者 | Schwab, Julia A.2; Young, Mark T.2; Neenan, James M.3; Walsh, Stig A.2,4; Witmer, Lawrence M.5; Herrera, Yanina6; Allain, Ronan7; Brochu, Christopher A.8; Choiniere, Jonah N.9; Clark, James M.10 |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2020-05-12 |
| 卷号 | 117期号:19页码:10422-10428 |
| 关键词 | bony labyrinth vestibular system morphology thalattosuchia CT scanning |
| ISSN号 | 0027-8424 |
| DOI | 10.1073/pnas.2002146117 |
| 英文摘要 | Major evolutionary transitions, in which animals develop new body plans and adapt to dramatically new habitats and lifestyles, have punctuated the history of life. The origin of cetaceans from land-living mammals is among the most famous of these events. Much earlier, during the Mesozoic Era, many reptile groups also moved from land to water, but these transitions are more poorly understood. We use computed tomography to study changes in the inner ear vestibular system, involved in sensing balance and equilibrium, as one of these groups, extinct crocodile relatives called thalattosuchians, transitioned from terrestrial ancestors into pelagic (open ocean) swimmers. We find that the morphology of the vestibular system corresponds to habitat, with pelagic thalattosuchians exhibiting a more compact labyrinth with wider semicircular canal diameters and an enlarged vestibule, reminiscent of modified and miniaturized labyrinths of other marine reptiles and cetaceans. Pelagic thalattosuchians with modified inner ears were the culmination of an evolutionary trend with a long semiaquatic phase, and their pelagic vestibular systems appeared after the first changes to the postcranial skeleton that enhanced their ability to swim. This is strikingly different from cetaceans, which miniaturized their labyrinths soon after entering the water, without a prolonged semiaquatic stage. Thus, thalattosuchians and cetaceans became secondarily aquatic in different ways and at different paces, showing that there are different routes for the same type of transition. |
| WOS关键词 | EVOLUTION ; RATES ; THALATTOSUCHIA ; BEHAVIOR ; REPTILES ; EOCENE ; SIZE |
| 资助项目 | National Natural Science Foundation of China[41688103] ; Humboldt Research Fellowship from the Alexander von Humboldt Foundation ; Leverhulme Trust Research Project[RPG-2017-167] ; Leverhulme Trust Early Career Fellowship[ECF-2017-360] ; ANPCyT[PICTs 2016-0267] ; ANPCyT[2016-1039] ; National Science Foundation[DEB 1754659] ; National Science Foundation[DEB 1754596] ; Carl Gans Fund |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000532837500043 |
| 出版者 | NATL ACAD SCIENCES |
| 源URL | [http://119.78.100.205/handle/311034/17464]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Schwab, Julia A. |
| 作者单位 | 1.North Carolina State Univ, Dept Biol Sci, Raleigh, NC 27695 USA 2.Univ Edinburgh, Grant Inst, Sch GeoSci, Edinburgh EH9 3FE, Midlothian, Scotland 3.Univ Oxford, Museum Nat Hist, Oxford OX1 3PW, England 4.Natl Museum Scotland, Dept Nat Sci, Edinburgh EH1 1JF, Midlothian, Scotland 5.Ohio Univ, Heritage Coll Osteopath Med, Dept Biomed Sci, Athens, OH 45701 USA 6.Natl Univ La Plata, Fac Ciencias Nat & Museo, Museo La Plata, CONICET,Div Paleontol Vertebrados, B-1900 La Plata, Buenos Aires, Argentina 7.Museum Natl Hist Nat, Ctr Rech Paleobiodivers & Les Paleoenvironm, F-75005 Paris, France 8.Univ Iowa, Dept Earth & Environm Sci, Iowa City, IA 52242 USA 9.Univ Witwatersrand, Evolutionary Studies Inst, ZA-2000 Johannesburg, South Africa 10.George Washington Univ, Dept Biol Sci, Washington, DC 20052 USA |
| 推荐引用方式 GB/T 7714 | Schwab, Julia A.,Young, Mark T.,Neenan, James M.,et al. Inner ear sensory system changes as extinct crocodylomorphs transitioned from land to water[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(19):10422-10428. |
| APA | Schwab, Julia A..,Young, Mark T..,Neenan, James M..,Walsh, Stig A..,Witmer, Lawrence M..,...&Brusatte, Stephen L..(2020).Inner ear sensory system changes as extinct crocodylomorphs transitioned from land to water.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(19),10422-10428. |
| MLA | Schwab, Julia A.,et al."Inner ear sensory system changes as extinct crocodylomorphs transitioned from land to water".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.19(2020):10422-10428. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。