Notes on early Oligocene ursids (Carnivora, Mammalia) from Saint Jacques, Nei Mongol, China

IVPP-IR > 中科院古脊椎所（2000年以后）

	Notes on early Oligocene ursids (Carnivora, Mammalia) from Saint Jacques, Nei Mongol, China
	Wang, BY; Qiu, ZX; Wang, BY (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
	2003
发表期刊	BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY
ISSN	0003-0090
期号	279 页码:116-124
文章类型	Article
摘要	The ursid fossils collected from Saint Jacques include Pachycynodon tedfordi, new species, Amphicynodon sp., and Cephalogale sp. The distinctive features of Pachycynodon tedfordi are: short premolar series relative to molars, diastemata between c and p I and among premolars very short or absent, distinct cingula on p1-p4, well-developed posterior accessory cuspids on p2-p4, long and narrow rut with relatively high protoconid, metaconid lower than paraconid, and relatively long m2 without distinct paraconid. Four genera (Amphicticeps, Amphicynodon, Pachcynodon, and Cephalogale) representing two subfamilies (Amphicynodontinae and Hemicyoninae) have been discovered in the Oligocene of Asia. The last three are genera common to Asia and Europe, and indicate migration. Based on the ursid and other mammalian fossils, the deposits at Loc. 77046 near Saint Jacques are determined as Oligocene in age, and those at Loc. 77046.5 are late early Oligocene. Migration of ursids between Asia and Europe occurred in the early Oligocene, and migration of several taxa from Asia to North America likely occurred later, in the late Oligocene or early Miocene.; The ursid fossils collected from Saint Jacques include Pachycynodon tedfordi, new species, Amphicynodon sp., and Cephalogale sp. The distinctive features of Pachycynodon tedfordi are: short premolar series relative to molars, diastemata between c and p I and among premolars very short or absent, distinct cingula on p1-p4, well-developed posterior accessory cuspids on p2-p4, long and narrow rut with relatively high protoconid, metaconid lower than paraconid, and relatively long m2 without distinct paraconid.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	MIDDLE OLIGOCENE ; RODENTIA
收录类别	SCI
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology
WOS记录号	WOS:000186887100006
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3755
专题	中科院古脊椎所（2000年以后）古低等脊椎动物研究室古哺乳动物研究室
通讯作者	Wang, BY (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
作者单位	Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Wang, BY,Qiu, ZX,Wang, BY . Notes on early Oligocene ursids (Carnivora, Mammalia) from Saint Jacques, Nei Mongol, China[J]. BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY,2003(279):116-124.
APA	Wang, BY,Qiu, ZX,&Wang, BY .(2003).Notes on early Oligocene ursids (Carnivora, Mammalia) from Saint Jacques, Nei Mongol, China.BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY(279),116-124.
MLA	Wang, BY,et al."Notes on early Oligocene ursids (Carnivora, Mammalia) from Saint Jacques, Nei Mongol, China".BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY .279(2003):116-124.

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