Evolutionary trend in dental size in fossil orangutans from the Pleistocene of Chongzuo, Guangxi, southern China
文献类型：期刊论文
| 作者 | Harrison, Terry4; Zhang, Yingqi2,3; Yang, Liyun1; Yuan, Zengjian1 |
| 刊名 | JOURNAL OF HUMAN EVOLUTION
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 161页码:9 |
| 关键词 | Pongo Dentition Taxonomy Paleobiology Primate community |
| ISSN号 | 0047-2484 |
| DOI | 10.1016/j.jhevol.2021.103090 |
| 通讯作者 | Harrison, Terry(terry.harrison@nyu.edu) |
| 英文摘要 | More than 800 isolated teeth of fossil Pongo have been recovered from cave sites in the vicinity of Chongzuo in Guangxi, southern China, ranging from the Early to Late Pleistocene (2.0-0.1 Ma). These collections provide a unique regional window into the evolutionary history of orangutans over a two-million-year period at the northernmost extent of their former geographic range. Here we investigate the nature and timing of the evolutionary change in the dental size of fossil orangutans from Chongzuo. Fossil tooth size (mesiodistal length*buccolingual breadth) was compared against an extant Pongo pygmaeus standard (n = 106 individuals). During the course of the Pleistocene, orangutans from southern China exhibited a progressive reduction in overall dental size. Early Pleistocene Pongo has cheek teeth with occlusal areas that are 38.1% larger than those of extant P. pygmaeus. Those from the Middle and Late Pleistocene are 25.2% and 18.9% larger, respectively. Previously, the size difference in dentition between the Early toMiddle Pleistocene and Middle to Late Pleistocene samples was used to differentiate time-successive species of Pongo, namely Pongo weidenreichi and Pongo devosi. However, with access to larger samples and better representation of populations through time, the evidence in support of this taxonomic arrangement requires reconsideration. Diminution of the teeth now appears to be a gradual evolutionary transformation rather than a punctuated event. Moreover, the morphological features that distinguish the Chongzuo fossil orangutans from extant Pongo spp. remain uniform throughout the Pleistocene. Retaining P. weidenreichi and P. devosi as anagenetic species remains an option, but, given the current evidence, we consider it preferable to assign all of the fossil orangutans from Chongzuo to P. weidenreichi. Beyond resolving questions of alpha taxonomy, the study of fossil orangutan dental size provides a basis for estimating body mass, which has implications for interpreting the paleobiology of Pleistocene Pongo in southern China. (C) 2021 Published by Elsevier Ltd. |
| WOS关键词 | PONGO-PYGMAEUS-WURMBII ; GIGANTOPITHECUS-BLACKI ; BODY-MASS ; ELEPHAS-MAXIMUS ; 1ST DISCOVERY ; QUEQUE CAVE ; SANHE CAVE ; ECOLOGY ; BEHAVIOR ; FAUNAS |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] |
| WOS研究方向 | Anthropology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000720358900004 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://119.78.100.205/handle/311034/19210]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Harrison, Terry |
| 作者单位 | 1.Zhuang Ethnol Museum Chongzuo, Chongzuo, Guangxi, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.NYU, Dept Anthropol, Ctr Study Human Origins, New York, NY 10003 USA |
| 推荐引用方式 GB/T 7714 | Harrison, Terry,Zhang, Yingqi,Yang, Liyun,et al. Evolutionary trend in dental size in fossil orangutans from the Pleistocene of Chongzuo, Guangxi, southern China[J]. JOURNAL OF HUMAN EVOLUTION,2021,161:9. |
| APA | Harrison, Terry,Zhang, Yingqi,Yang, Liyun,&Yuan, Zengjian.(2021).Evolutionary trend in dental size in fossil orangutans from the Pleistocene of Chongzuo, Guangxi, southern China.JOURNAL OF HUMAN EVOLUTION,161,9. |
| MLA | Harrison, Terry,et al."Evolutionary trend in dental size in fossil orangutans from the Pleistocene of Chongzuo, Guangxi, southern China".JOURNAL OF HUMAN EVOLUTION 161(2021):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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