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Cortical bone mapping: An application to hand and foot bones in hominoids

Accepted version
Peer-reviewed

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Type

Article

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Authors

Tsegai, ZJ 
Stephens, NB 
Treece, GM 
Skinner, MM 
Kivell, TL 

Abstract

Bone form reflects both the genetic profile and behavioural history of an individual. As cortical bone is able to remodel in response to mechanical stimuli, interspecific differences in cortical bone thickness may relate to loading during locomotion or manual behaviours during object manipulation. Here, we test the application of a novel method of cortical bone mapping to the third metacarpal (Mc3) and talus of Pan, Pongo, and Homo. This method of analysis allows measurement of cortical thickness throughout the bone, and as such is applicable to elements with complex morphology. In addition, it allows for registration of each specimen to a canonical surface, and identifies regions where cortical thickness differs significantly between groups. Cortical bone mapping has potential for application to palaeoanthropological studies; however, due to the complexity of correctly registering homologous regions across varied morphology, further methodological development would be advantageous.

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Keywords

Cortex, Cortical thickness measurement, Behavioural reconstruction, Morphometric maps, Hominoid

Journal Title

Comptes Rendus - Palevol

Conference Name

Journal ISSN

1631-0683
1777-571X

Volume Title

16

Publisher

Elsevier