| An Asian origin for Sinomastodon (Proboscidea, Gomphotheriidae) inferred from a new Upper Miocene specimen from Gansu of China | |
| Wang ShiQi1; Zhao DeSi2; Xie GuangPu3; Sun BoYang1; Wang, SQ (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China. | |
| 2014-10-01 | |
| 发表期刊 | SCIENCE CHINA-EARTH SCIENCES
 |
| ISSN | 1674-7313 |
| 卷号 | 57期号:10页码:2522-2531 |
| 文章类型 | Article |
| 摘要 | We report a fossil specimen referable to Sinomastodontinae gen. et sp. indet. from the Neogene strata at Yanghecun locality, Xihe County, Gansu Province, China. The specimen is characterized by a brevirostrine mandible, complete pretrite trefoils, and relatively simple posttrite half lophids, showing typical features of Sinomastodon. It differs from the other known species of Sinomastodon by the following features: relatively short and wide m3 due to fewer lophid numbers, less inflated pretrite accessory central conules, poorly developed secondary trefoils and cementum, and relatively strong cingulid. All of these features indicate a bias towards pleisiomorphies of Sinomastodon, implying that this specimen is more ancestral than any known species of Sinomastodon. The symphysis of the new specimen is relatively long, which differs from the typical brevirostrine Sinomastodon, and thus we consider it a gen. et sp. indet. in the Subfamily Sinomastodontinae. In addition, the horizon in which the present specimen was found probably represents the Upper Miocene because it is lower than Pliocene strata yielding Hipparion (Proboscidipparon) pater. Generally, Sinomastodon is considered to have migrated from North America at about the time of the Miocene/Pliocene boundary, and to have been derived from a certain clade of American gomphotheres. However, the discovery of the Yanghecun specimen verifies that Sinomastodon lived in East Asia during the Late Miocene, and probably derived from Old World gomphotheres (e.g., G. wimani). The similarity between the members of the Subfamilies Sinomastodontinae and those of Cuvieroniinae is suggested to have been the result of parallel evolution. |
| 关键词 | Sinomastodon Gomphotheres Sinomastodontinae Cuvieroniinae East Asia Biostratigraphy |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 关键词[WOS] | MAMMALIA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | Chinese Academy of Sciences [XDB03020104]; National Basic Research Program of China [2012CB821900]; National Natural Science Foundation of China [41372001, 41002010, 40730210]; Important Research Plan of IVPP |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000343363600023 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5127 |
| 专题 | 古哺乳动物研究室 |
| 通讯作者 | Wang, SQ (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Gansu Ind Occupat Technol Coll, Tianshui 741025, Peoples R China 3.Gansu Prov Museum, Lanzhou 730050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang ShiQi,Zhao DeSi,Xie GuangPu,et al. An Asian origin for Sinomastodon (Proboscidea, Gomphotheriidae) inferred from a new Upper Miocene specimen from Gansu of China[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(10):2522-2531. |
| APA | Wang ShiQi,Zhao DeSi,Xie GuangPu,Sun BoYang,&Wang, SQ .(2014).An Asian origin for Sinomastodon (Proboscidea, Gomphotheriidae) inferred from a new Upper Miocene specimen from Gansu of China.SCIENCE CHINA-EARTH SCIENCES,57(10),2522-2531. |
| MLA | Wang ShiQi,et al."An Asian origin for Sinomastodon (Proboscidea, Gomphotheriidae) inferred from a new Upper Miocene specimen from Gansu of China".SCIENCE CHINA-EARTH SCIENCES 57.10(2014):2522-2531. |
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