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Title: A human lower third molar from the Acheulean site of Cueva del Ángel (Lucena, Córdoba, Spain)
Authors: Bermúdez, Francisco J.
Martínez de Pinillos, Marina
Medina-Lara, Francisca
Barroso-Medina, Cecilia
Cabral-Mesa, Antonio L.
Santiago-Pérez, Antonio
Ortiz Menéndez, José Eugenio
Sánchez-Palencia, Yolanda
Saos, Thibaud
Grégoire, Sophie
Pois, Véronique
Vialet, Amélie
Monge Gómez, Guadalupe
Moigne, Anne-Marie
Caparrós, Miguel
Torres, Trinidad de
Bermúdez de Castro, José María
Barroso-Ruiz, Cecilio
Keywords: European Upper Pleistocene;Human evolution;Lower third molar;Micro-CT;Morphology and metric analysis
Issue Date: Feb-2023
Publisher: Wiley
Citation: American Journal of Biological Anthropology, 2023, 180(2), 386-400
Abstract: Objectives: To present a new dental specimen that will provide additional evidence for a better understanding of early European Upper Pleistocene hominin morphological variability. Materials and Methods: We described the morphology of this human right lower third molar at both the outer enamel surface and the enamel–dentine junction by means of micro-computed tomography. In order to better understand hominin diversity, our morphological and metrical results were compared with those of other hominins obtained from published research. We provide a direct aspartic acid racemization dating of the molar. Results: The direct dating (104.3 ka) situates the molar within the Marine isotopic stage 5d. The crown dimensions are comparable to those of the Sima de los Huesos sample and modern humans. The combination of a continuous middle trigonid crest and a well-developed anterior fovea lies within the range of morphological variation reported for Neanderthal lower molars. The distal portion of the molar has a prominent protostylid. Discussion: Crown and root morphology of this molar fits within the Neanderthal morphological pattern. However, both its dimensions and the absence of a hypoconulid tend to position this specimen away from contemporaneous Neanderthals and rather relate it more closely to some Middle Pleistocene populations. Conclusions: A new dental specimen is added to the Iberian Peninsula fossil record from the Marine isotopic stage 5, attesting to some degree of dental variability in the early Upper Pleistocene.
ISSN: 2692-7691
DOI: 10.1002/ajpa.24677
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Type: Article
Appears in Collections:Paleobiología
Microscopía y Microtomografía Computarizada

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