Middle Pleistocene Hominin Teeth from Longtan Cave, Hexian, China

IVPP-IR > 中科院古脊椎所（2000年以后）

	Middle Pleistocene Hominin Teeth from Longtan Cave, Hexian, China
	Xing, Song 1; Martinon-Torres, Maria 2; Bermudez de Castro, Jose Maria 2; Zhang, Yingqi 1; Fan, Xiaoxiao 3; Zheng, Longting 4; Huang, Wanbo 5; Liu, Wu 1
	2014-12-31
发表期刊	PLOS ONE
卷号	9 期号:12
文章类型	Article
摘要	Excavations at the Longtan Cave, Hexian, Anhui Province of Eastern China, have yielded several hominin fossils including crania, mandibular fragments, and teeth currently dated to 412 +/- 25 ka. While previous studies have focused on the cranial remains, there are no detailed analyses of the dental evidence. In this study, we provide metric and morphological descriptions and comparisons of ten teeth recovered from Hexian, including microcomputed tomography analyses. Our results indicate that the Hexian teeth are metrically and morphologically primitive and overlap with H. ergaster and East Asian Early and mid-Middle Pleistocene hominins in their large dimensions and occlusal complexities. However, the Hexian teeth differ from H. ergaster in features such as conspicuous vertical grooves on the labial/buccal surfaces of the central incisor and the upper premolar, the crown outline shapes of upper and lower molars and the numbers, shapes, and divergences of the roots. Despite their close geological ages, the Hexian teeth are also more primitive than Zhoukoudian specimens, and resemble Sangiran Early Pleistocene teeth. In addition, no typical Neanderthal features have been identified in the Hexian sample. Our study highlights the metrical and morphological primitive status of the Hexian sample in comparison to contemporaneous or even earlier populations of Asia. Based on this finding, we suggest that the primitive-derived gradients of the Asian hominins cannot be satisfactorily fitted along a chronological sequence, suggesting complex evolutionary scenarios with the coexistence and/or survival of different lineages in Eurasia. Hexian could represent the persistence in time of a H. erectus group that would have retained primitive features that were lost in other Asian populations such as Zhoukoudian or Panxian Dadong. Our study expands the metrical and morphological variations known for the East Asian hominins before the mid-Middle Pleistocene and warns about the possibility that the Asian hominin variability may have been taxonomically oversimplified.
WOS标题词	Science & Technology
关键词[WOS]	GEOMETRIC MORPHOMETRIC-ANALYSIS ; ENAMEL-DENTIN JUNCTION ; JAVANESE HOMO-ERECTUS ; MODERN HUMANS ; PALEOANTHROPOLOGICAL SITE ; MORPHOLOGICAL DESCRIPTION ; 1974-1977 COLLECTIONS ; TISSUE PROPORTIONS ; DECIDUOUS MOLARS ; FOSSIL HOMINIDS
收录类别	SCI ; SSCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000347119100009
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7363
专题	中科院古脊椎所（2000年以后）
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Natl Res Ctr Human Evolut CENIEH, Burgos, Spain 3.Hexian Museum Anhui Prov, Hexian, Peoples R China 4.Anhui Museum, Hefei, Peoples R China 5.China Three Gorges Museum, Chongqing Three Gorges Inst Paleoanthropol, Chongqing, Peoples R China
推荐引用方式 GB/T 7714	Xing, Song,Martinon-Torres, Maria,Bermudez de Castro, Jose Maria,et al. Middle Pleistocene Hominin Teeth from Longtan Cave, Hexian, China[J]. PLOS ONE,2014,9(12).
APA	Xing, Song.,Martinon-Torres, Maria.,Bermudez de Castro, Jose Maria.,Zhang, Yingqi.,Fan, Xiaoxiao.,...&Liu, Wu.(2014).Middle Pleistocene Hominin Teeth from Longtan Cave, Hexian, China.PLOS ONE,9(12).
MLA	Xing, Song,et al."Middle Pleistocene Hominin Teeth from Longtan Cave, Hexian, China".PLOS ONE 9.12(2014).