Cranial endocast of the stem lagomorph Megalagusand brain structure of basal Euarchontoglires
文献类型：期刊论文
| 作者 | Lopez-Torres, Sergi2,3,4,5; Bertrand, Ornella C.6; Lang, Madlen M.7; Silcox, Mary T.7; Fostowicz-Frelik, Lucja1,5,8 |
| 刊名 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
 |
| 出版日期 | 2020-06-24 |
| 卷号 | 287期号:1929页码:9 |
| 关键词 | Euarchontoglires lagomorphs Palaeogene endocast evolution |
| ISSN号 | 0962-8452 |
| DOI | 10.1098/rspb.2020.0665 |
| 英文摘要 | Early lagomorphs are central to our understanding of how the brain evolved in Glires (rodents, lagomorphs and their kin) from basal members of Euarchontoglires (Glires + Euarchonta, the latter grouping primates, treeshrews, and colugos). Here, we report the first virtual endocast of the fossil lagomorphMegalagus turgidus, from the Orella Member of the Brule Formation, early Oligocene, Nebraska, USA. The specimen represents one of the oldest nearly complete lagomorph skulls known. Primitive aspects of the endocranial morphology inMegalagusinclude large olfactory bulbs, exposure of the midbrain, a small neocortex and a relatively low encephalization quotient. Overall, this suggests a brain morphology closer to that of other basal members of Euarchontoglires (e.g. plesiadapiforms and ischyromyid rodents) than to that of living lagomorphs. However, the well-developed petrosal lobules inMegalagus, comparable to the condition in modern lagomorphs, suggest early specialization in that order for the stabilization of eye movements necessary for accurate visual tracking. Our study sheds new light on the reconstructed morphology of the ancestral brain in Euarchontoglires and fills a critical gap in the understanding of palaeoneuroanatomy of this major group of placental mammals. |
| WOS关键词 | VIRTUAL ENDOCASTS ; EVOLUTION ; MAMMALIA ; PRIMATES ; APATOTHERIA ; MORPHOLOGY ; PALEOCENE ; EOCENE ; APATEMYIDAE ; ANATOMY |
| 资助项目 | National Science Centre (Cracow, Poland)[2015/18/E/NZ8/00637] ; NSERC ; Marie Sklodowska-Curie Actions: Individual Fellowship (H2020-MSCA-IF-2018-2020)[792611] ; Natural Sciences and Engineering Research Council of Canada (NSERC) CGS grant |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000545646000001 |
| 出版者 | ROYAL SOC |
| 源URL | [http://119.78.100.205/handle/311034/17734]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Fostowicz-Frelik, Lucja |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 3.Amer Museum Nat Hist, Richard Gilder Grad Sch, New York, NY 10024 USA 4.New York Consortium Evolutionary Primatol, New York, NY USA 5.Polish Acad Sci, Inst Paleobiol, Dept Evolutionary Paleobiol, Warsaw, Poland 6.Univ Edinburgh, Sch Geosci, Edinburgh EH9 3FE, Midlothian, Scotland 7.Univ Toronto Scarborough, Dept Anthropol, Toronto, ON, Canada 8.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lopez-Torres, Sergi,Bertrand, Ornella C.,Lang, Madlen M.,et al. Cranial endocast of the stem lagomorph Megalagusand brain structure of basal Euarchontoglires[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2020,287(1929):9. |
| APA | Lopez-Torres, Sergi,Bertrand, Ornella C.,Lang, Madlen M.,Silcox, Mary T.,&Fostowicz-Frelik, Lucja.(2020).Cranial endocast of the stem lagomorph Megalagusand brain structure of basal Euarchontoglires.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,287(1929),9. |
| MLA | Lopez-Torres, Sergi,et al."Cranial endocast of the stem lagomorph Megalagusand brain structure of basal Euarchontoglires".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 287.1929(2020):9. |
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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