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Below the crown: examining interspecies variation in postcanine enamel thickness, EDJ, and root form in the Paranthropus clade.

Skinner, Matthew M., Bailey, Shara E., Gunz, Philipp, Kimbel, W H, Alemseged, Zeresenay, Delezene, Lucas K, Menter, Colin, Moggi-Cecchi, Jacopo, Kupczik, Kornelius (2018) Below the crown: examining interspecies variation in postcanine enamel thickness, EDJ, and root form in the Paranthropus clade. In: Annual Meeting of the American Association for Physical Anthropologists, 11-14 Apr 2018, Austin, USA. (Unpublished) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:77911)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)

Abstract

Although there is considerable evidence of shared craniodental morphology within the Paranthropus clade, microwear and isotopic studies suggest that this shared morphology may be linked to different dietary behaviour in eastern and southern Africa. Recently, it has been demonstrated that detailed morphological analyses of the internal structure of tooth crowns (specifically, enamel thickness, enamel-dentine junction morphology and root/pulp canal form), assessed using high resolution microtomography, can reveal previously undetected differences in tooth structure that can have systematic and functional implications In this study, we generate high-resolution surface models of the EDJ surface, external root surface, and pulp canal form of Paranthropus specimens from Kromdraai, Swartkrans, Drimolen, Koobi Fora, West Turkana, and the Omo. We assess enamel thickness in 2D mesial planes of section, root/canal form through an expanded qualitative typology for the hominin clade, and EDJ morphology through landmark-based 3D

of the crown (increased enamel thickness and very low dentine horns) and roots (increased root volumes and increasing distal pulp canal size); 2) there is evidence for population differences between sites preserving P. robustus; and 3) there is evidence at Gondolin (South Africa) for morphological similarity in molar form with P. boisei from

Koobi Fora. The implications of these findings for the systematics, functional morphology, and paleogeography of Paranthropus are discussed

Item Type: Conference or workshop item (Paper)
Subjects: G Geography. Anthropology. Recreation > GN Anthropology
Divisions: Faculties > Social Sciences > School of Anthropology and Conservation > Biological Anthropology
Depositing User: Matthew Skinner
Date Deposited: 27 Oct 2019 09:12 UTC
Last Modified: 29 Oct 2019 09:46 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/77911 (The current URI for this page, for reference purposes)
Skinner, Matthew M.: https://orcid.org/0000-0001-8321-3543
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