Geometric morphometric analysis of the early Pleistocene hominin teeth from Jianshi, Hubei Province, China

CORC > 古脊椎动物与古人类研究所 > 中国科学院古脊椎动物与古人类研究所 > 图书馆1

	Geometric morphometric analysis of the early Pleistocene hominin teeth from Jianshi, Hubei Province, China
	Liu Wu1 ; Ronald, Clarke 2; Xing Song 1,3; liuwu@ivpp.ac.cn
刊名	SCIENCE CHINA-EARTH SCIENCES
	2010-08-01
卷号	53 期号:8 页码:1141-1152
关键词	Human Evolution Tooth Shape Geometric Morphometric Jianshi Hubei China
ISSN号	1674-7313
文献子类	Article
英文摘要	Although the early Pleistocene hominin fossils found in East Asia continent are widely recognized as the earliest hominins migrated from Africa, debates remain on the morphology and taxonomy of these fossils. In this study, dental crown shape of the three early Pleistocene hominin teeth (P(3), M(1), and M(1)) found in Jianshi, Hubei Province of China was analyzed by means of geometric morphometrics. The comparative samples of fossil hominins from Africa, Asia, and Europe as well as those of modern humans (N=257) were used. The results indicate that the contour, asymmetry, and cusp patterns of these three types of teeth differ obviously between the fossil hominins and modern humans. The crown shape of P(3) in most fossil hominins including Australopithecus, African early Homo, and Asian Pleistocene hominins are asymmetric with their crown occlusal contours long and curving elliptic-shaped. The occlusal contour of the fossil hominin M(1) is symmetric and rectangle-shaped with no marked cusp protrusion. The crown shape of fossil M(1) is characterized by asymmetric contour with slightly projected metaconid and hypoconid. On the contrary, in modern Chinese and some European late Pleistocene hominins, the crowns of P(3)s show symmetric contours with buccal side wider than lingual side; the crown shape of M(1) is asymmetric with lingual cusp distal-placed, especially for hypoconid; the M(1) has symmetric and round crown contour. Our study reveals that Australopithecus has wide variations in its crown shape, whereas these dental morphospaces of Asian hominins are closely placed. The crown contour, symmetry, and cusp patterns of these three teeth of Jianshi hominin resemble those of Asian early and middle Pleistocene hominins. No marked difference in dental crown shape is shown between the Jianshi hominin and other Chinese Homo erectus, and there is also no evidence in support of the Jianshi hominin's closeness to Australopithecus and African early Homo members.
URL标识	查看原文
WOS关键词	DENTAL MORPHOLOGY ; MANDIBULAR MOLARS ; CROWN MORPHOLOGY ; CUSP AREAS ; SHAPE ; ALLOMETRY ; HOMO ; EVOLUTION ; PREMOLAR ; SIZE
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000280642300006
公开日期	2013-11-27
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/4546]
专题	古脊椎动物与古人类研究所_图书馆1 古脊椎动物与古人类研究所_古人类及旧石器研究室
通讯作者	liuwu@ivpp.ac.cn
作者单位	1.Chinese Acad Sci, Key Lab Evolutionary Systemat Vertebrates, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Univ Witwatersrand, Johannesburg, South Africa 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu Wu,Ronald, Clarke,Xing Song,et al. Geometric morphometric analysis of the early Pleistocene hominin teeth from Jianshi, Hubei Province, China[J]. SCIENCE CHINA-EARTH SCIENCES,2010,53(8):1141-1152.
APA	Liu Wu,Ronald, Clarke,Xing Song,&liuwu@ivpp.ac.cn.(2010).Geometric morphometric analysis of the early Pleistocene hominin teeth from Jianshi, Hubei Province, China.SCIENCE CHINA-EARTH SCIENCES,53(8),1141-1152.
MLA	Liu Wu,et al."Geometric morphometric analysis of the early Pleistocene hominin teeth from Jianshi, Hubei Province, China".SCIENCE CHINA-EARTH SCIENCES 53.8(2010):1141-1152.