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Título
Early and Middle Pleistocene hominins from Atapuerca (Spain) show differences in dental developmental patterns
Autor
Publicado en
American Journal of Biological Anthropology. 2022, V. 178, n. 2, p. 273-285
Editorial
Wiley
Fecha de publicación
2022-06
ISSN
2692-7691
DOI
10.1002/ajpa.24487
Resumen
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.
Palabras clave
Atapuerca
Bayesian
Dental development
Hominin
Pleistocene
Materia
Anatomía humana
Human anatomy
Restos humanos (Arqueología)
Human remains (Archaeology)
Versión del editor
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