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  Small body size phenotypes among Middle and Later Stone Age Southern Africans

Cameron, M. E., Pfeiffer, S., & Stock, J. (2021). Small body size phenotypes among Middle and Later Stone Age Southern Africans. Journal of Human Evolution, 152: 102943. doi:10.1016/j.jhevol.2020.102943.

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 Creators:
Cameron, Michelle E., Author
Pfeiffer, Susan, Author
Stock, Jay1, Author              
Affiliations:
1Archaeology, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074312              

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Free keywords: Long bone dimensions, Cross-sectional geometry, Klasies River Mouth, Middle Stone Age, Southern Africa, Khoe-San
 Abstract: Modern humans originated between 300 and 200 ka in structured populations throughout Africa, characterized by regional interaction and diversity. Acknowledgment of this complex Pleistocene population structure raises new questions about the emergence of phenotypic diversity. Holocene Southern African Later Stone Age (LSA) skeletons and descendant Khoe-San peoples have small adult body sizes that may reflect long-term adaptation to the Cape environment. Pleistocene Southern African adult body sizes are not well characterized, but some postcranial elements are available. The most numerous Pleistocene postcranial skeletal remains come from Klasies River Mouth on the Southern Cape coast of South Africa. We compare the morphology of these skeletal elements with globally sampled Holocene groups encompassing diverse adult body sizes and shapes (n = 287) to investigate whether there is evidence for phenotypic patterning. The adult Klasies River Mouth bones include most of a lumbar vertebra, and portions of a left clavicle, left proximal radius, right proximal ulna, and left first metatarsal. Linear dimensions, shape characteristics, and cross-sectional geometric properties of the Klasies River Mouth elements were compared using univariate and multivariate methods. Between-group principal component analyses group Klasies River Mouth elements, except the proximal ulna, with LSA Southern Africans. The similarity is driven by size. Klasies River Mouth metatarsal cross-sectional geometric properties indicate similar torsional and compressive strength to those from LSA Southern Africans. Phenotypic expressions of small-bodied adult morphology in Marine Isotope Stages 5 and 1 suggest this phenotype may represent local convergent adaptation to life in the Cape.

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Language(s): eng - English
 Dates: 2021-02-082021-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: 1. Introduction
1.1. The archaeological and skeletal record in Southern Africa
1.2. The Klasies River Mouth site and skeletal remains
2. Materials and methods
3. Results
3.1. Linear dimensions
3.2. Between-group principal component analyses
3.3. Vertebra analysis
3.4. CSG properties
4. Discussion and conclusions
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.jhevol.2020.102943
Other: shh2852
 Degree: -

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Title: Journal of Human Evolution
  Other : J. Hum. Evol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Academic Press
Pages: - Volume / Issue: 152 Sequence Number: 102943 Start / End Page: - Identifier: ISSN: 0047-2484
CoNE: https://pure.mpg.de/cone/journals/resource/954922647065