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

文献类型：期刊论文

作者Pan, Lei1,2; Dumoncel, Jean1; de Beer, Frikkie3; Hoffman, Jakobus3; Thackeray, John Francis4; Duployer, Benjamin5; Tenailleau, Christophe5; Braga, Jose1,4
刊名JOURNAL OF HUMAN EVOLUTION
出版日期2016-07-01
卷号96页码:82-96
关键词Australopiths Geometric Morphometric Taxonomic Discrimination Dental Evolution Dietary Adaptation
DOI10.1016/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
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.

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