Enamel Thickness in Atapuerca <i>Homo antecessor</i> and Sima de Los Huesos Permanent Premolars

doi:10.1002/ajpa.70068

IVPP-IR

	*Enamel Thickness in Atapuerca Homo antecessor* and Sima de Los Huesos Permanent Premolars**
	Martin-Frances, Laura 1,2,3; Kamath, Shruti 4,5; Soligo, Christophe 5; de Pinillos, Marina Martinez 1,6; Xing, Song 1,7; Arsuaga, Juan Luis 8; de Castro, Jose Maria Bermudez 1,5; Martinon-Torres, Maria 1,5
	2025-06-01
发表期刊	AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY
ISSN	2692-7691
卷号	187 期号:2 页码:22
通讯作者	Martin-Frances, Laura(lauramartinfrancesmf@gmail.com)
摘要	ObjectivesThis study investigates premolar tissue proportions in the Atapuerca hominins to assess whether Homo antecessor (TD6) and Sima de los Huesos (SH) specimens exhibit thick or thin enamel, and whether relative enamel thickness is linked to tooth size reduction or enamel-dentine junction (EDJ) complexity. It also examines intrapopulation variability and provides new comparative data.Materials and MethodsNew 2D and 3D tissue metrics were derived from mCT images for TD6 (P3 = 2, P4 = 1), SH (P3 = 7, P4 = 6, P3 = 12, P4 = 17), Neanderthals (P3 = 4, P4 = 4, P3 = 4, P4 = 6), and modern humans (P3 = 15, P4 = 12, P3 = 26, P4 = 20). These data were combined with published sources for analysis.ResultsOur results suggest different patterns for upper and lower premolars in SH; upper premolars resemble those of Neanderthals, while lower premolars are more similar to modern humans. TD6 upper premolars show high variability, but the lower ones align more closely with Neanderthals. Relative enamel thickness varies with crown size, but not with EDJ complexity.DiscussionOur findings highlight notable intrapopulation variability in enamel thickness among Atapuerca hominins and support the early emergence of reduced enamel in European populations. Moreover, our results imply that overall crown reduction may contribute to variation in enamel thickness in these populations. These results caution against using enamel thickness alone for taxonomic classification and emphasize the importance of analyzing both upper and lower dentitions across all dental classes.
关键词	Atapuerca early and middle Pleistocene populations enamel distribution permanent premolars tissue proportions
DOI	10.1002/ajpa.70068
关键词[WOS]	SIZE-REDUCTION ; DENTAL REMAINS ; NEANDERTHAL ; TEETH ; TOOTH ; CANINES ; HUMANS ; BURGOS ; MOLARS
收录类别	SCI
语种	英语
资助项目	HORIZON EUROPE Marie Sklodowska-Curie Actions[101060482] ; Spanish Ministry of Science and Innovation and European Regional Development Fund ERDF Away of making Europe[PID2021-122355NB-C31-C33] ; Spanish Ministry of Science and Innovation - MCIN/AEI[IJC2020-043979-I] ; NextGenerationEU/PRTR ; Wenner-Gren Foundation's Wadsworth International Fellowship[WIF-251] ; Marie Curie Actions (MSCA)[101060482]
项目资助者	HORIZON EUROPE Marie Sklodowska-Curie Actions ; Spanish Ministry of Science and Innovation and European Regional Development Fund ERDF Away of making Europe ; Spanish Ministry of Science and Innovation - MCIN/AEI ; NextGenerationEU/PRTR ; Wenner-Gren Foundation's Wadsworth International Fellowship ; Marie Curie Actions (MSCA)
WOS研究方向	Anthropology ; Evolutionary Biology
WOS类目	Anthropology ; Evolutionary Biology
WOS记录号	WOS:001518735700001
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/311034/24523
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.CENIEH, Burgos, Spain 2.Monash Univ, Monash Biomed Discovery Inst, Dept Anat & Dev Biol, Melbourne, Australia 3.IPHES Tarragona, Tarragona, Spain 4.MA Healthcare, British Journal Community Nursing, London, England 5.UCL, Anthropol Dept, London, England 6.Univ Burgos, Fac Human & Educ, Dept Hist Geog & Comunicac, Lab Evoluc Humana, Burgos, Spain 7.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, IVPP, Beijing, Peoples R China 8.Ctr Mixto UCM ISCIII Evoluc & Comportamiento Human, Madrid, Spain
推荐引用方式 GB/T 7714	Martin-Frances, Laura,Kamath, Shruti,Soligo, Christophe,et al. Enamel Thickness in Atapuerca Homo antecessor and Sima de Los Huesos Permanent Premolars[J]. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY,2025,187(2):22.
APA	Martin-Frances, Laura.,Kamath, Shruti.,Soligo, Christophe.,de Pinillos, Marina Martinez.,Xing, Song.,...&Martinon-Torres, Maria.(2025).Enamel Thickness in Atapuerca Homo antecessor and Sima de Los Huesos Permanent Premolars.AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY,187(2),22.
MLA	Martin-Frances, Laura,et al."Enamel Thickness in Atapuerca Homo antecessor and Sima de Los Huesos Permanent Premolars".AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 187.2(2025):22.