作者: Mona Le Luyer , Michael Coquerelle , Stéphane Rottier , Priscilla Bayle
DOI: 10.1371/JOURNAL.PONE.0159688
关键词: Mineralogy 、 Biology 、 Evolutionary biology 、 Hypocone 、 Mandibular second molar 、 Molar 、 Crown size 、 Alcove 、 Paleogenetics 、 Dentition 、 Enamel paint 、 General Biochemistry, Genetics and Molecular Biology 、 General Agricultural and Biological Sciences 、 General Medicine
摘要: Variations in the dental crown form are widely studied to interpret evolutionary changes primates as well assess affinities among human archeological populations. Compared external metrics of size and shape, variables including internal structures such enamel thickness, tissue proportions, three-dimensional shape enamel-dentin junction (EDJ), have been described powerful measurements study taxonomy, phylogenetic relationships, dietary, and/or developmental patterns. In addition providing good estimate phenotypic distances within/across samples, these tooth may help understand phylogenetic, functional, underlying causes variation. this study, a high resolution microtomographic-based record upper permanent second molars from 20 Neolithic individuals necropolis Gurgy (France) was applied evaluate intrasite variation thickness distribution enamel, EDJ shape. The aims compare interindividual variations with burial practices chronocultural parameters, suggest variations. From non-invasive characterization structure, differences found between buried pits alcove those container wattling. Additionally, early recent phases distinguished principal phase their proportions results that structure be reliable proxy track groups sharing similar practices. particular, analysis, an shared reduction distolingual dentin horn tip (corresponding hypocone). Environmental, functional might suggested for origin by alcoves.