A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki

IVPP-IR > 中科院古脊椎所（2000年以后）

	A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki
	Kono, Reiko T.1; Zhang, Yingqi 2; Jin, Changzhu 2; Takai, Masanaru 3; Suwa, Gen 4
	2014-12-15
发表期刊	QUATERNARY INTERNATIONAL
卷号	354 页码:46-51
文章类型	Article
摘要	In order to investigate molar enamel thickness and distribution in Gigantopithecus blacki, two maxillary and three mandibular molars were micro-CT scanned, and the 3-dimensional (3D) shape of the enamel crown cap was digitally reconstructed. Results show that G. blacki molars have very thick enamel, over 6 mm in places. 3D average thickness of the entire crown relative to crown size was shown to be comparable to that of modern Homo sapiens, and thinner than in the very thick enameled robust Australopithecus condition. Durability of the tooth, calculated as the enamel volume relative to maximum horizontal area of the crown, was shown to be comparable to that of fossil hominids, including Australopithecus robustus. The thick occlusal enamel of G. blacki molars was found to be accompanied by a buccolingual gradient in which thicker enamel occurs on the cusps of the "functional" side. This is associated with higher crown height on the "functional" side of the crown, and implies an adaptation to differential buccolingual wear. These results indicate that G. blacki molars were adapted to heavy wear, but probably in a manner that was different from Pliocene and Pleistocene hominids. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	SOUTH CHINA ; BUBING BASIN ; EARLY PLEISTOCENE ; HOMINOID TEETH ; GUANGXI ; DIET ; TOOTH ; CAVE ; APE
收录类别	SCI ; SSCI
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000345523300006
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7344
专题	中科院古脊椎所（2000年以后）
作者单位	1.Natl Museum Nat & Sci, Dept Anthropol, Tsukuba, Ibaraki 3050005, Japan 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, Beijing 100044, Peoples R China 3.Kyoto Univ, Primate Res Inst, Aichi 4848506, Japan 4.Univ Tokyo, Univ Museum, Tokyo 1130033, Japan
推荐引用方式 GB/T 7714	Kono, Reiko T.,Zhang, Yingqi,Jin, Changzhu,et al. A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki[J]. QUATERNARY INTERNATIONAL,2014,354:46-51.
APA	Kono, Reiko T.,Zhang, Yingqi,Jin, Changzhu,Takai, Masanaru,&Suwa, Gen.(2014).A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki.QUATERNARY INTERNATIONAL,354,46-51.
MLA	Kono, Reiko T.,et al."A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki".QUATERNARY INTERNATIONAL 354(2014):46-51.