KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A new mammal from the Lower Cretaceous Jehol Biota and implications for eutherian evolution | |
Wang, Hai-Bing1,2,3; Hoffmann, Simone4; Wang, Dian-Can5; Wang, Yuan-Qing1,2,6
| |
| 2022-03-28 | |
| 发表期刊 | PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
 |
| ISSN | 0962-8436 |
| 卷号 | 377期号:1847页码:11 |
| 摘要 | Here we report on a new Early Cretaceous eutherian represented by a partial skeleton from the Jiufotang Formation at Sihedang site, Lingyuan City, Liaoning Province that fills a crucial gap between the earliest eutherians from the Yixian Formation and later Cretaceous eutherians. The new specimen reveals, to our knowledge for the first time in eutherians, that the Meckelian cartilage was ossified but reduced in size, confirming a complete detachment of the middle ear from the lower jaw. Seven hyoid elements, including paired stylohyals, epihyals and thyrohyals and the single basihyal are preserved. For the inner ear the ossified primary lamina, base of the secondary lamina, ossified cochlear ganglion and secondary crus commune are present and the cochlear canal is coiled through 360 degrees. In addition, plesiomorphic features of the dentition include weak conules, lack of pre- and post-cingula and less expanded protocones on the upper molars and height differential between the trigonid and talonid, a large protoconid and a small paraconid on the lower molars. The new taxon displays an alternating pattern of tooth replacement with P3 being the last upper premolar to erupt similar to the basal eutherian Juramaia. Parsimony analysis places the new taxon with Montanalestes, Sinodelphys and Ambolestes as a sister group to other eutherians. This article is part of the theme issue 'The impact of Chinese palaeontology on evolutionary research'. |
| 关键词 | Early Cretaceous Jehol Biota Eutheria Meckelian cartilage inner ear tooth replacement |
| DOI | 10.1098/rstb.2021.0042 |
| 关键词[WOS] | MIDDLE-EAR ; INNER-EAR ; MORPHOLOGY ; PHYLOGENY ; PETROSAL ; SKULL |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41688103] ; Youth Innovation Promotion Association, CAS ; National Natural Science Foundation of China[41802005] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[183121] ; Strategic Priority Research Programme of the Chinese Academy of Sciences[XDB26000000] |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
| WOS类目 | Biology |
| WOS记录号 | WOS:000751802600005 |
| 出版者 | ROYAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/21486 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 通讯作者 | Wang, Hai-Bing |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Beijing, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 4.New York Inst Technol, Dept Anat, Coll Osteopath Med, Old Westbury, NY USA 5.Peking Univ, Dept Oral & Maxillofacial Surg, Sch Stomatol, 22 South Zhongguancun Ave, Beijing, Peoples R China 6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hai-Bing,Hoffmann, Simone,Wang, Dian-Can,et al. A new mammal from the Lower Cretaceous Jehol Biota and implications for eutherian evolution[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2022,377(1847):11. |
| APA | Wang, Hai-Bing,Hoffmann, Simone,Wang, Dian-Can,&Wang, Yuan-Qing.(2022).A new mammal from the Lower Cretaceous Jehol Biota and implications for eutherian evolution.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,377(1847),11. |
| MLA | Wang, Hai-Bing,et al."A new mammal from the Lower Cretaceous Jehol Biota and implications for eutherian evolution".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 377.1847(2022):11. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| wang-et-al-2022-a-ne（1765KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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。
修改评论