中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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

文献类型:期刊论文

作者Sole, Floreal; De Bast, Eric; Yang, Jian; Li, Cheng-Sen; Smith, Thierry
刊名PALAEONTOLOGY
出版日期2017
卷号60期号:3页码:433-449
关键词mammals Paleocene Eocene Asia North America dispersal
ISSN号0031-0239
DOI10.1002/ecs2.1760
文献子类Article
英文摘要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.
学科主题Environmental Sciences & Ecology
出版地HOBOKEN
电子版国际标准刊号1475-4983
WOS关键词EOCENE THERMAL MAXIMUM ; PHYLOGENETIC-RELATIONSHIPS ; WHALES ; ARTIODACTYLS ; ORIGIN ; DISPERSAL ; BOUNDARY ; CETACEANS ; EVOLUTION ; MONGOLIA
语种英语
WOS记录号WOS:000400985300014
出版者WILEY
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]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/22159]  
专题植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文
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.

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来源:植物研究所

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