The first species of Hapalodectes (Mesonychia, Mammalia) from the middle Paleocene of China (Qianshan Basin, Anhui Province) sheds light on the initial radiation of hapalodectids

doi:10.1002/ecs2.1760

	The first species of Hapalodectes (Mesonychia, Mammalia) from the middle Paleocene of China (Qianshan Basin, Anhui Province) sheds light on the initial radiation of hapalodectids
	Sole, Floreal ; De Bast, Eric ; Yang, Jian ; Li, Cheng-Sen ; Smith, Thierry
	2017
发表期刊	PALAEONTOLOGY
ISSN	0031-0239
卷号	60 期号:3 页码:433-449
摘要	A lower jaw of the mesonychian Hapalodectes is reported from Nongshanian sediments (Upper Doumu Formation; middle Paleocene) of the Qianshan Basin (Anhui Province, China). The fragmentary mandible is only the third specimen of Hapalodectidae discovered in Paleocene deposits, and the first in south east China; it is moreover the oldest, the two other specimens having been found in Gashatan (late Paleocene) localities. The premolars and molars of the new fossil are morphologically similar to Hapalodectes dux (late Paleocene of Mongolia), which has been considered to be the most primitive hapalodectid, but their relative proportions recall H.paleocenus and the Eocene Hapalodectes species. As a result, the fossil described herein appears to be different from the other previously described species of Hapalodectes in being morphologically intermediate between H.dux and the other Hapalodectes species, notably the Bumbanian Hapalodectes hetangensis and H.huanghaiensis from China; it is thus identified as a new species, Hapalodectes lopatini (possibly a male individual). Its discovery is important because it sheds light on the initial radiation of hapalodectids. The presence of one primitive hapalodectid in Mongolia previously suggested the Mongolian Plateau as the centre of origination of this carnivorous family, but the discovery of H.lopatini in older sediments from south-east China challenges this hypothesis. In the earliest Eocene, Hapalodectes dispersed from Asia to North America; this event being part of the East of Eden' dispersals. This event resulted in the geographical separation of two distinct Hapalodectes groups, in North America and south-eastern China respectively.
关键词	mammals Paleocene Eocene Asia North America dispersal
学科领域	Environmental Sciences & Ecology
DOI	10.1002/ecs2.1760
收录类别	SCI
语种	英语
WOS关键词	EOCENE THERMAL MAXIMUM ; PHYLOGENETIC-RELATIONSHIPS ; WHALES ; ARTIODACTYLS ; ORIGIN ; DISPERSAL ; BOUNDARY ; CETACEANS ; EVOLUTION ; MONGOLIA
WOS记录号	WOS:000400985300014
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1475-4983
资助机构	Chinese Ministry of Science and TechnologyMinistry of Science and Technology, China [2009DFA32210] ; Belgian Federal Science Policy OfficeBelgian Federal Science Policy OfficeEuropean Commission [BL/36/C54]
作者邮箱	floreal.sole@naturalsciences.be ; eric.debast@naturalsciences.be ; yangjian001@gmail.com ; lics@ibcas.ac.cn ; thierry.smith@naturalsciences.be
作品OA属性	gold
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22159
专题	系统与进化植物学国家重点实验室
作者单位	1.Royal Belgian Inst Nat Sci, Directorate Earth & Hist Life, Rue Vautier 29, B-1000 Brussels, Belgium 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Sole, Floreal,De Bast, Eric,Yang, Jian,et al. The first species of Hapalodectes (Mesonychia, Mammalia) from the middle Paleocene of China (Qianshan Basin, Anhui Province) sheds light on the initial radiation of hapalodectids[J]. PALAEONTOLOGY,2017,60(3):433-449.
APA	Sole, Floreal,De Bast, Eric,Yang, Jian,Li, Cheng-Sen,&Smith, Thierry.(2017).The first species of Hapalodectes (Mesonychia, Mammalia) from the middle Paleocene of China (Qianshan Basin, Anhui Province) sheds light on the initial radiation of hapalodectids.PALAEONTOLOGY,60(3),433-449.
MLA	Sole, Floreal,et al."The first species of Hapalodectes (Mesonychia, Mammalia) from the middle Paleocene of China (Qianshan Basin, Anhui Province) sheds light on the initial radiation of hapalodectids".PALAEONTOLOGY 60.3(2017):433-449.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Shi-2017-Effects of （1582KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文