Enamel and dentine dimensions of the Pleistocene hominins from Atapuerca (Burgos,Spain): A comparative study of canine teeth |
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Authors: | Cecilia García-Campos María Martinón-Torres Laura Martín-Francés Mario Modesto-Mata Marina Martínez de Pinillos Juan Luis Arsuaga José María Bermúdez de Castro |
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Affiliation: | 1. Centro Nacional de Investigación sobre la Evolución Humana, Paseo de la Sierra de Atapuerca 3, 09002 Burgos, Spain;2. Anthropology Department, University College London, 14 Taviton Street, WC1H 0BW London, UK;3. Université de Bordeaux, UMR 5199 PACEA, 33615 Pessac cedex, France;4. Laboratorio de Evolución Humana, Departamento de Historia, Geografía y Comunicación, Universidad de Burgos,Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain;5. Centro Mixto UCM-ISCIII de Evolución y Comportamiento Humanos, Madrid, Spain |
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Abstract: | Enamel and dentin patterns have awakened a considerable interest in phylogenetic studies. However, almost nothing is known about the dental tissue proportions of European Pleistocene hominins, apart from Neanderthal populations. This study aims to assess the three-dimensional dental tissue proportions of permanent canines belonging to the extensive sample of hominin teeth at Sierra de Atapuerca (Spain) through the use of microtomographic techniques. Our results show that early and middle Pleistocene populations from Atapuerca exhibit large coronal and root dentine dimensions, as well as a thinly enamelled pattern, which has been traditionally considered an autapomorphic Neanderthal trait. Therefore, these results might support an early enamel thickness decrease which is already observed 800 kyr ago in Homo antecessor and maintained in later groups such as Sima de los Huesos and Neanderthal populations during the middle Pleistocene. |
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Keywords: | Atapuerca Canines Dentine Enamel Microcomputed tomography Atapuerca Canines Dentine Email Microtomographie |
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