Crown tissue proportions and enamel thickness distribution in early Pleistocene Homo antecessor maxillary premolars (Atapuerca, Spain)

doi:10.1002/ajpa.24679

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	Crown tissue proportions and enamel thickness distribution in early Pleistocene Homo antecessor maxillary premolars (Atapuerca, Spain)
	Martin-Frances, Laura 1,2,3,4,5; Martinon-Torres, Maria 3,6; Martinez de Pinillos, Marina 3,7; Xing, Song 3,8; Soligo, Christophe 6; Garcia-Campos, Cecilia 3,9; Modesto-Mata, Mario 3; Bermudez de Castro, Jose Maria 3,6
	2022-12-24
发表期刊	AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY
ISSN	2692-7691
页码	16
通讯作者	Martin-Frances, Laura([email protected])
摘要	Objectives: Both morphometric and proteomic studies have revealed the close relationship of Homo antecessor with Neanderthals and H. sapiens. Considering this relationship, we aim to characterize the Early Pleistocene Atapuerca-Gran Dolina (TD6) maxillary premolars to test if their pattern of enamel thickness is shared with Neanderthals or H. sapiens.Materials and Methods: We employed microcomputed tomography to estimate 2D and 3D tissue proportions in seven H. antecessor maxillary premolars, belonging to two individuals: H1 and H3, and compared them to a sample of extinct and extant Homo populations of African, Asian and European origin (n = 52).Results: Our results reveal a different pattern of enamel thickness between the Atapuerca-Gran Dolina two individuals. While TD6-H1 possesses thin-enameled crowns, with a clear affinity with Neanderthals, TD6-H3 exhibits the thick pattern, a trait shared with the majority of fossil hominins and H. sapiens.Discussion: This work provides new data on upper premolar enamel thickness in H. antecessor. By documenting both a thin and a thick pattern of enamel thickness in the TD6 sample, we warn about the taxonomic utility of this feature in the characterization of isolated remains. We suggest that the thin enamel condition would have emerged during the Early Pleistocene and it became the most frequent and typical condition in Neanderthals. Possible causes for the pattern observed in TD6 include sexual dimorphism or presence of two populations in the sample; however, population variability is the most plausible explanation with a character expression intermediate between those of Neanderthals and other members of the genus Homo. This interpretation is compatible with the phylogenetic position of H. antecessor close to the ancestor of Neanderthals and H. sapiens.
关键词	Atapuerca-gran Dolina enamel distribution Homo antecessor permanent maxillary premolars tissue proportions
DOI	10.1002/ajpa.24679
关键词[WOS]	GEOMETRIC MORPHOMETRIC-ANALYSIS ; GRAN DOLINA ; DENTAL DEVELOPMENT ; MOLAR TEETH ; REMAINS ; TOOTH ; SITE ; NEANDERTHAL ; PATTERNS ; HUMANS
收录类别	SCI
语种	英语
资助项目	Consejeria de Cultura y Turismo of the Junta de Castilla y Leon ; Ministerio de Ciencia e Innovacion[IJC2020-043979-I] ; Ministerio de Ciencia e Innovacion[PID2021-122355NB-C33] ; Spanish Ministry of Science and Innovation ; Leakey Foundation
项目资助者	Consejeria de Cultura y Turismo of the Junta de Castilla y Leon ; Ministerio de Ciencia e Innovacion ; Spanish Ministry of Science and Innovation ; Leakey Foundation
WOS研究方向	Anthropology ; Evolutionary Biology
WOS类目	Anthropology ; Evolutionary Biology
WOS记录号	WOS:000903865800001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22207
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Martin-Frances, Laura
作者单位	1.Univ Complutense Madrid, Ctr Mixto, Inst Salud Carlos III Evoluc & Comportamiento Hum, Madrid 28029, Spain 2.Univ Complutense Madrid, Fac Ciencias Geol, Dept Paleontol, Madrid, Spain 3.CENIEH Natl Res Ctr Human Evolut, Burgos, Spain 4.Inst Catala Paleoecol Humana & Evolucio Social IP, Tarragona, Spain 5.Univ Rovira & Virgili, Dept Hist & Hist Art, Tarragona, Spain 6.UCL, Anthropol Dept, London, England 7.Univ Burgos, Fac Humanidades & Educ, Dept Hist Geog & Comunicac, Lab Evoluc Humana, Burgos, Spain 8.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 9.Univ Pontificia Comillas, Fac Ciencias Humanas & Sociales, Madrid, Spain
推荐引用方式 GB/T 7714	Martin-Frances, Laura,Martinon-Torres, Maria,Martinez de Pinillos, Marina,et al. Crown tissue proportions and enamel thickness distribution in early Pleistocene Homo antecessor maxillary premolars (Atapuerca, Spain)[J]. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY,2022:16.
APA	Martin-Frances, Laura.,Martinon-Torres, Maria.,Martinez de Pinillos, Marina.,Xing, Song.,Soligo, Christophe.,...&Bermudez de Castro, Jose Maria.(2022).Crown tissue proportions and enamel thickness distribution in early Pleistocene Homo antecessor maxillary premolars (Atapuerca, Spain).AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY,16.
MLA	Martin-Frances, Laura,et al."Crown tissue proportions and enamel thickness distribution in early Pleistocene Homo antecessor maxillary premolars (Atapuerca, Spain)".AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY (2022):16.