Structural analysis of the femoral diaphyses of an early modern human from Tianyuan Cave, China

doi:10.1016/j.quaint.2015.10.099

IVPP-IR > 中科院古脊椎所（2000年以后）

	Structural analysis of the femoral diaphyses of an early modern human from Tianyuan Cave, China
	Wei, Pianpian 1,2,3; Wallace, Ian J.4; Jashashvili, Tea 3; Musiba, Charles M.3,5; Liu, Wu 1
	2017-04-01
发表期刊	QUATERNARY INTERNATIONAL
卷号	434 页码:48-56
文章类型	Article
摘要	The Tianyuan 1 skeleton is among the oldest fossil specimens of our species from East Asia. Important in the original assessment of the skeleton as belonging to a modern human was its femoral structure, particularly its well-developed pilasters. Also noteworthy were its large femoral diaphyseal second moments of area, which were interpreted as evidence of a physically demanding lifestyle, and pathological bone growths on the posterior femoral shafts. Here, we build on previous studies of femoral morphology in Tianyuan 1 by analyzing its diaphyseal structure using micro-computed tomography coupled with a novel method of visualizing cortical bone thickness distributions along the shaft with color maps. Additionally, we calculate diaphyseal second moments of area in Tianyuan 1 with and without its pathological bone additions in order to evaluate whether these growths are the cause of its apparently high diaphyseal robusticity. Diaphyseal color maps and second moments of area of Tianyuan 1 femora are compared to those of three recent (Holocene) human comparative samples, as well as samples of Pleistocene humans. The results show that in terms of cortical thickness distribution, Tianyuan 1 femoral diaphyses are strikingly similar to those of recent humans, as well as Pleistocene early modern humans, yet distinct from the diaphyses of Neandertals. This provides additional support for the modern human status of Tianyuan 1. Analyses of second moments of area reveal that Tianyuan 1 is best classified as a Pleistocene early modern human rather than as a member of any of the recent samples when pathological bone additions are included in area moment calculations. Interestingly, however, once pathological growths are virtually removed, Tianyuan 1 cannot be assigned with confidence to any comparative group. This suggests that the relatively high anteroposterior femoral diaphyseal strength mid-distally in Tianyuan 1 is to some degree a product of its pathological condition. (C) 2016 Elsevier Ltd and INQUA. All rights reserved.
关键词	Cortical Thickness Distribution Femur Zhoukoudian Homo Sapiens East Asia Late Pleistocene
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.quaint.2015.10.099
关键词[WOS]	BODY-MASS ; LIMB ; HOMO ; PROPORTIONS ; MOBILITY ; EUROPE
收录类别	SCI ; SSCI
语种	英语
项目资助者	Chinese Academy of Sciences(GJHZ201314 ; National Natural Science Foundation of China(41272034 ; Department of Science and Technology of South Africa ; National Research Foundation of South Africa ; laZD-EW-03 ; 41302016) ; XDA05130101)
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000399509100006
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7451
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, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Witwatersrand, Evolutionary Studies Inst, Private Bag 3, ZA-2050 Johannesburg, South Africa 4.Harvard Univ, Dept Human Evolutionary Biol, Cambridge, MA 02138 USA 5.Univ Colorado, Dept Anthropol, Denver, CO 80217 USA
推荐引用方式 GB/T 7714	Wei, Pianpian,Wallace, Ian J.,Jashashvili, Tea,et al. Structural analysis of the femoral diaphyses of an early modern human from Tianyuan Cave, China[J]. QUATERNARY INTERNATIONAL,2017,434:48-56.
APA	Wei, Pianpian,Wallace, Ian J.,Jashashvili, Tea,Musiba, Charles M.,&Liu, Wu.(2017).Structural analysis of the femoral diaphyses of an early modern human from Tianyuan Cave, China.QUATERNARY INTERNATIONAL,434,48-56.
MLA	Wei, Pianpian,et al."Structural analysis of the femoral diaphyses of an early modern human from Tianyuan Cave, China".QUATERNARY INTERNATIONAL 434(2017):48-56.