Further morphological evidence on South African earliest Homo lower postcanine dentition: Enamel thickness and enamel dentine junction

doi:10.1016/j.jhevol.2016.05.003

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	Further morphological evidence on South African earliest Homo lower postcanine dentition: Enamel thickness and enamel dentine junction
	Pan, Lei 1,2; Dumoncel, Jean 1; de Beer, Frikkie 3; Hoffman, Jakobus 3; Thackeray, John Francis 4; Duployer, Benjamin 5; Tenailleau, Christophe 5; Braga, Jose 1,4
刊名	JOURNAL OF HUMAN EVOLUTION
	2016-07-01
卷号	96 页码:82-96
关键词	Australopiths Geometric Morphometric Taxonomic Discrimination Dental Evolution Dietary Adaptation
DOI	10.1016/j.jhevol.2016.05.003
文献子类	Article
英文摘要	The appearance of the earliest members of the genus Homo in South Africa represents a key event in human evolution. Although enamel thickness and enamel dentine junction (EDJ) morphology preserve important information about hominin systematics and dietary adaptation, these features have not been sufficiently studied with regard to early Homo. We used micro-CT to compare enamel thickness and EDJ morphology among the mandibular postcanine dentitions of South African early hominins (N = 30) and extant Homo sapiens (N = 26), with special reference to early members of the genus Homo. We found that South African early Homo shows a similar enamel thickness distribution pattern to modern humans, although three-dimensional average and relative enamel thicknesses do not distinguish australopiths, early Homo, and modern humans particularly well. Based on enamel thickness distributions, our study suggests that a dietary shift occurred between australopiths and the origin of the Homo lineage. We also observed that South African early Homo postcanine EDJ combined primitive traits seen in australopith molars with derived features observed in modern human premolars. Our results confirm that some dental morphological patterns in later Homo actually occurred early in the Homo lineage, and highlight the taxonomic value of premolar EDJ morphology in hominin species. (C) 2016 Elsevier Ltd. All rights reserved.
WOS关键词	BRIEF COMMUNICATION ; AUSTRALOPITHECUS-AFRICANUS ; PARANTHROPUS-ROBUSTUS ; MANDIBULAR MOLARS ; DISTRIBUTION PATTERNS ; SWARTKRANS FORMATION ; TISSUE PROPORTIONS ; DECIDUOUS MOLARS ; MAXILLARY MOLARS ; CAVE DEPOSITS
WOS研究方向	Anthropology ; Evolutionary Biology
语种	英语
WOS记录号	WOS:000379279500005
资助机构	Centre National de la Recherche Scientifique ; French Ministry of Foreign Affairs ; French Embassy in South Africa through the Cultural and Cooperation Services ; China Scholarship Council
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7020]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	1.Univ Toulouse 3, Comp Assisted Palaeoanthropol Team, CNRS, UMR 5288, 37 Allees Jules Guesde, F-31000 Toulouse, France 2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.South African Nucl Energy Corp, Pelindaba, North West Prov, South Africa 4.Univ Witwatersrand, Evolutionary Studies Inst, PO WITS, ZA-2050 Johannesburg, South Africa 5.Univ Toulouse 3, Ctr Interuniv Rech & Ingn Mat, CNRS, UMR 5085, 118 Route Narbonne, F-31062 Toulouse 9, France
推荐引用方式 GB/T 7714	Pan, Lei,Dumoncel, Jean,de Beer, Frikkie,et al. Further morphological evidence on South African earliest Homo lower postcanine dentition: Enamel thickness and enamel dentine junction[J]. JOURNAL OF HUMAN EVOLUTION,2016,96:82-96.
APA	Pan, Lei.,Dumoncel, Jean.,de Beer, Frikkie.,Hoffman, Jakobus.,Thackeray, John Francis.,...&Braga, Jose.(2016).Further morphological evidence on South African earliest Homo lower postcanine dentition: Enamel thickness and enamel dentine junction.JOURNAL OF HUMAN EVOLUTION,96,82-96.
MLA	Pan, Lei,et al."Further morphological evidence on South African earliest Homo lower postcanine dentition: Enamel thickness and enamel dentine junction".JOURNAL OF HUMAN EVOLUTION 96(2016):82-96.