First discovery of fossil Diplothrix (Muridae, Rodentia) outside the Ryukyu Islands, Japan

IVPP-IR > 中科院古脊椎所（2000年以后）

	First discovery of fossil Diplothrix (Muridae, Rodentia) outside the Ryukyu Islands, Japan
	Wang Yuan 1,2; Jin ChangZhu 1; Wei GuangBiao 3,4; wangyuan_ivpp@yahoo.com.cn
	2010-02-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	55 期号:4-5 页码:411-417
文章类型	Article
摘要	The first Diplothrix (Muridae, Rodentia) fossils of the early Early Pleistocene are described as D. yangziensis sp. nov., which were collected from the Renzidong Cave deposits in Anhui Province, Eastern China. Diplothrix was previously represented by a single species, D. legata, whose geographical distribution during the Late Pleistocene is restricted to the Ryukyu Islands, Japan. With straight chevrons on M1, distinct t3 and t9 on upper molars, primitive M3, mlc on m1, and developed a-lab on m2 and m3, the new species is morphologically distinct from other large murids in East Asia, and should belong to the genus Diplothrix. There are also differences in molar morphology between the new species and D. legata, the type species of Diplothrix, as well as other known fossils. For example, D. yangziensis sp. nov. has a smaller size, a more elongated crown, developed precingulum and pc on M1, more primitive M3, weaker mlc and more primitive pc on m1, and stronger plc and pc on m3. In short, Diplothrix yangziensis sp. nov. is evidently more primitive than D. legata, suggesting that the former is likely the ancestor of the latter. Diplothrix yangziensis sp. nov. is the first discovery of the genus outside the Ryukyu Islands, Japan and is also the earliest and most primitive species of the genus in Eurasia. Its discovery has significant implications for reconstructing the evolution and dispersal pattern of Diplothrix, as well as for discussing its palaeoecological variation.
关键词	Renzidong Cave Anhui Province Early Early Pleistocene Diplothrix
WOS标题词	Science & Technology
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000274843600014
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4599
专题	中科院古脊椎所（2000年以后）
通讯作者	wangyuan_ivpp@yahoo.com.cn
作者单位	1.Chinese Acad Sci, Key Lab Evolutionary Systemat Vertebrates, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.China Three Gorges Museum, Chongqing Gorges Inst Paleoanthropol 3, Chongqing 400015, Peoples R China 4.Chongqing Normal Univ, Chongqing Gorges Culture & Social Dev Res Inst 3, Chongqing 400047, Peoples R China
推荐引用方式 GB/T 7714	Wang Yuan,Jin ChangZhu,Wei GuangBiao,et al. First discovery of fossil Diplothrix (Muridae, Rodentia) outside the Ryukyu Islands, Japan[J]. CHINESE SCIENCE BULLETIN,2010,55(4-5):411-417.
APA	Wang Yuan,Jin ChangZhu,Wei GuangBiao,&wangyuan_ivpp@yahoo.com.cn.(2010).First discovery of fossil Diplothrix (Muridae, Rodentia) outside the Ryukyu Islands, Japan.CHINESE SCIENCE BULLETIN,55(4-5),411-417.
MLA	Wang Yuan,et al."First discovery of fossil Diplothrix (Muridae, Rodentia) outside the Ryukyu Islands, Japan".CHINESE SCIENCE BULLETIN 55.4-5(2010):411-417.

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
First discovery of f（830KB）			开放获取	--	浏览下载