Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes
文献类型：期刊论文
| 作者 | Fostowicz-Frelik, Lucja4,5; Cox, Philip G.3; Li, Qian1,2
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| 刊名 | PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
 |
| 出版日期 | 2023-07-03 |
| 卷号 | 378期号:1880页码:9 |
| ISSN号 | 0962-8436 |
| 关键词 | Glires Lagomorpha Rodentia Palaeocene mandible morphology |
| DOI | 10.1098/rstb.2022.0087 |
| 通讯作者 | Fostowicz-Frelik, Lucja(lfost@twarda.pan.pl) |
| 英文摘要 | Glires (rodents, lagomorphs and their fossil kin) is the most speciose and arguably most diversified clade of living placentals. Different lineages within the Glires evolved basically opposite chewing movements: a mostly transversal power stroke in lagomorphs, and a mostly proal power stroke in rodents, but the ancestral condition for Glires is still unclear. To address this knowledge gap, we studied the mandibles of Chinese Palaeocene Glires representing the duplicidentate (lagomorph-like; Mimotona) and simplicidentate (rodent-like; Eomylus and Heomys) lineages. To assess the mechanical resistance of mandibles to bending and torsion, we calculated the section modulus. The dentaries differ greatly in morphology and the region where the maximum grinding force was likely applied. The early Palaeocene Mimotona lii and the middle Palaeocene Mimotona robusta and Heomys orientalis all show a pattern of increasing strength moving posteriorly along the mandible, similar to sciurids and the mountain beaver. By contrast, the late Palaeocene Eomylus sp. mandible was strongest in the m1 region, a pattern seen in lagomorphs and the stem placental Zofialestes. Our results indicate the early diversification of mandible structure of Glires, demonstrate a mixture of duplicidentate and simplicidentate characters among the basal Glires and suggest an early occurrence of a lagomorph-like morphotype.This article is part of the theme issue 'The mammalian skull: development, structure and function'. |
| WOS关键词 | MONGOLIA ; FORCE ; PALEOCENE ; EVOLUTION ; SKULL |
| 资助项目 | National Science Centre (Cracow, Poland)[2015/18/E/NZ8/00637] ; IVPP ; FMNH ; University of Chicago Library ; Royal Society |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC |
| WOS记录号 | WOS:000988806100004 |
| 资助机构 | National Science Centre (Cracow, Poland) ; IVPP ; FMNH ; University of Chicago Library ; Royal Society |
| 源URL | [http://119.78.100.205/handle/311034/22557]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Fostowicz-Frelik, Lucja |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 3.UCL, Ctr Integrat Anat, Dept Cell & Dev Biol, London WC1E 6BT, England 4.Polish Acad Sci, Inst Paleobiol, PL-00818 Warsaw, Poland 5.Univ Chicago, Dept Organismal Biol & Anat, Chicago, IL 60637 USA |
| 推荐引用方式 GB/T 7714 | Fostowicz-Frelik, Lucja,Cox, Philip G.,Li, Qian. Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2023,378(1880):9. |
| APA | Fostowicz-Frelik, Lucja,Cox, Philip G.,&Li, Qian.(2023).Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,378(1880),9. |
| MLA | Fostowicz-Frelik, Lucja,et al."Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 378.1880(2023):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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