The inner craniodental anatomy of the Papio specimen U.W. 88-886 from the Early Pleistocene site of Malapa, Gauteng, South Africa

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dc.contributor.authorBouchet, Florian
dc.contributor.authorRibéron, Alexandre
dc.contributor.authorHeaton, Jason L.
dc.contributor.authorHoffman, Jakobus
dc.contributor.authorBam, Lunga
dc.contributor.authorJakata, Kudakwashe
dc.contributor.authorTawane, Mirriam
dc.contributor.authorTenailleau, Christophe
dc.contributor.authorZipfel, Bernhard
dc.contributor.authorBeaudet, Amélie
dc.date.accessioned2019-04-08T10:20:35Z
dc.date.available2019-04-08T10:20:35Z
dc.date.issued2019-04
dc.description.abstractCercopithecoids represent an essential component of the Plio-Pleistocene faunal assemblage. However, despite the abundance of the cercopithecoid fossil remains in African Plio-Pleistocene deposits, the chronological and geographic contexts from which the modern baboons (i.e. Papio hamadryas ssp.) emerged are still debated. The recently discovered Papio (hamadryas) angusticeps specimen (U.W. 88-886) from the Australopithecus sediba-bearing site of Malapa, Gauteng, South Africa, may represent the first modern baboon occurrence in the fossil record. Given the implication of U.W. 88-886 for the understanding of the papionin evolutionary history and the potential of internal craniodental structures for exploring evolutionary trends in fossil monkey taxa, we use X-ray microtomography to investigate the inner craniodental anatomy of this critical specimen. Our goal is to provide additional evidence to examine the origins of modern baboons. In particular,we explore (i) the tissue proportions and the dentine topographic distribution in dental roots and (ii) the endocranial organization. Consistent with the previous description and metrical analyses of its external cranial morphology, U.W. 88-886 shares internal craniodental anatomy similarities with Plio-Pleistocene and modern Papio, supporting its attribution to Papio (hamadryas) angusticeps. Interestingly, average dentine thickness and distribution in U.W. 88-886 fit more closely to the extinct Papio condition, while the sulcal pattern and relative dentine thickness are more like the extant Papio states. Besides providing additional evidence for characterizing South African fossil papionins, our study sheds new light on the polarity of inner craniodental features in the papionin lineage.en_ZA
dc.description.librarianJNC2019en_ZA
dc.description.sponsorshipPalaeontological Scientific Trust (PAST) Occitanie Region and the French Ministry of Higher Education and Researchen_ZA
dc.identifier.issn2410-4418
dc.identifier.urihttps://hdl.handle.net/10539/26721
dc.journal.titlePalaeontologia africanaen_ZA
dc.journal.volume53en_ZA
dc.language.isoenen_ZA
dc.orcid.id0000-0002-9363-5966en_ZA
dc.orcid.id0000-0002-4251-884Xen_ZA
dc.orcid.id0000-0001-5935-9745en_ZA
dc.orcid.id0000-0001-8039-4748en_ZA
dc.publisherEvolutionary Studies Instituteen_ZA
dc.rightsCopyright 2019 the Authorsen_ZA
dc.subjectmodern baboonsen_ZA
dc.subjectCradle of Humankinden_ZA
dc.subjectpapioninsen_ZA
dc.subjectendocasten_ZA
dc.subjecttooth rootsen_ZA
dc.titleThe inner craniodental anatomy of the Papio specimen U.W. 88-886 from the Early Pleistocene site of Malapa, Gauteng, South Africaen_ZA
dc.typeArticleen_ZA
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