Skip to main content

The position of Australopithecus sediba within fossil hominin hand use diversity

Dunmore, Christopher J., Skinner, Matthew M., Bardo, Ameline, Berger, Lee R, Hublin, Jean-Jacques, Pahr, Dieter H., Rosas, Antonio, Stephens, Nicholas B., Kivell, Tracy L. (2020) The position of Australopithecus sediba within fossil hominin hand use diversity. Nature Ecology and Evolution, . ISSN 2397-334X. (doi:10.1038/s41559-020-1207-5) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:81327)

PDF Author's Accepted Manuscript
Language: English

Restricted to Repository staff only until 18 November 2020.

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Contact us about this Publication
[img]
Official URL
https://dx.doi.org/10.1038/s41559-020-1207-5

Abstract

The human lineage is marked by a transition in hand use, from locomotion towards increasingly dexterous manipulation, concomitant with bipedalism. The forceful precision grips used by modern humans probably evolved in the context of tool manufacture and use, but when and how many times hominin hands became principally manipulative remains unresolved. We analyse metacarpal trabecular and cortical bone, which provide insight into behaviour during an individual’s life, to demonstrate previously unrecognized diversity in hominin hand use. The metacarpals of the palm in Australopithecus sediba have trabecular morphology most like orangutans and consistent with locomotor power-grasping with the fingers, while that of the thumb is consistent with human-like manipulation. This internal morphology is the first record of behaviour consistent with a hominin that used its hand for both arboreal locomotion and human-like manipulation. This hand use is distinct from other fossil hominins in this study, including A. afarensis and A. africanus.

Item Type: Article
DOI/Identification number: 10.1038/s41559-020-1207-5
Subjects: G Geography. Anthropology. Recreation > GN Anthropology
Q Science > QM Human anatomy
Divisions: Faculties > Social Sciences > School of Anthropology and Conservation > Biological Anthropology
Depositing User: Chris Dunmore
Date Deposited: 20 May 2020 11:58 UTC
Last Modified: 21 May 2020 10:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/81327 (The current URI for this page, for reference purposes)
Dunmore, Christopher J.: https://orcid.org/0000-0002-8634-9777
Skinner, Matthew M.: https://orcid.org/0000-0001-8321-3543
Bardo, Ameline: https://orcid.org/0000-0003-1840-6423
Berger, Lee R: https://orcid.org/0000-0002-0367-7629
Pahr, Dieter H.: https://orcid.org/0000-0002-5822-2082
Rosas, Antonio: https://orcid.org/0000-0002-5829-9952
Kivell, Tracy L.: https://orcid.org/0000-0001-5087-0897
  • Depositors only (login required):

Downloads

Downloads per month over past year