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Early and Middle Pleistocene hominins from Atapuerca (Spain) show differences in dental developmental patterns

Modesto-Mata, Mario; Garcia-Gonzalez, Rebeca; Quintino, Yuliet; Garcia-Campos, Cecilia; de Pinillos, Marina Martinez; Martin-Frances, Laura; Martinon-Torres, Maria; ... Bermudez de Castro, Jose Maria; + view all (2022) Early and Middle Pleistocene hominins from Atapuerca (Spain) show differences in dental developmental patterns. American Journal of Biological Anthropology , 178 (2) pp. 273-285. 10.1002/ajpa.24487. Green open access

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Abstract

The Bayesian statistical approach considers teeth as forming a developmental module, as opposed to a tooth-by-tooth analysis. This approach has been employed to analyze Upper Pleistocene hominins, including Neandertals and some anatomically modern humans, but never earlier populations. Here, we show its application on five hominins from the TD6.2 level of the Gran Dolina site (Homo antecessor, Early Pleistocene) and the Sima de los Huesos site (Middle Pleistocene) of the Sierra de Atapuerca (Burgos, northern Spain). Our results show an advanced development of the third molars in both populations with respect to modern Homo sapiens. In addition, the Sima de los Huesos hominins differ from H. sapiens and H. antecessor in the relatively advanced development of their second molar. The relative mineralization of I1/M1 in H. antecessor appears to be similar to that of modern humans, as opposed to that of Neandertals, which appear to be unique. These observations, combined with reduced enamel formation times and the advanced development of the third molars, appear to indicate a shorter ontogenetic period in the hominins from Gran Dolina and Sima de los Huesos in comparison to modern human average.

Type: Article
Title: Early and Middle Pleistocene hominins from Atapuerca (Spain) show differences in dental developmental patterns
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/ajpa.24487
Publisher version: http://doi.org/10.1002/ajpa.24487
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Life Sciences & Biomedicine, Anthropology, Evolutionary Biology, Atapuerca, Bayesian, dental development, hominin, Pleistocene, UPPER PALEOLITHIC CHILD, 3RD MOLAR AGENESIS, GRAN DOLINA SITE, TISSUE PROPORTIONS, HOMO-ANTECESSOR, MODERN HUMANS, LAGAR VELHO, NEANDERTHAL, GROWTH, SIMA
UCL classification: UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Anthropology
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10157086
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