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Perspective

The meaning of Neandertal skeletal morphology

Timothy D. Weaver
  1. Department of Anthropology, University of California, One Shields Avenue, Davis, CA 95616; and Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany

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PNAS September 22, 2009 106 (38) 16028-16033; https://doi.org/10.1073/pnas.0903864106
Timothy D. Weaver
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  • For correspondence: tdweaver@ucdavis.edu
  1. Edited by Richard G. Klein, Stanford University, Stanford, CA, and approved June 26, 2009 (received for review April 9, 2009)

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Abstract

A procedure is outlined for distinguishing among competing hypotheses for fossil morphology and then used to evaluate current views on the meaning of Neandertal skeletal morphology. Three explanations have dominated debates about the meaning of Neandertal cranial features: climatic adaptation, anterior dental loading, and genetic drift. Neither climatic adaptation nor anterior dental loading are well supported, but genetic drift is consistent with the available evidence. Climatic adaptation and activity patterns are the most discussed explanations for Neandertal postcranial features. Robust empirical relationships between climate and body form in extant humans and other endotherms currently make climatic adaptation the most plausible explanation for the wide bodies and relatively short limbs of Neandertals, and many additional postcranial features are likely secondary consequences of these overall skeletal proportions. Activity patterns may explain certain Neandertal postcranial features, but unlike the situation for climate, relationships in extant humans between morphology and activities are typically not well established. For both the cranium and the postcranium, changes in diet or activity patterns may underlie why Neandertals and Pleistocene modern humans tend to be more robust than Holocene humans.

  • cranium
  • human evolution
  • modern human origins
  • postcranium

Footnotes

  • 1E-mail: tdweaver{at}ucdavis.edu
  • Author contributions: T.D.W. wrote the paper.

  • The author declares no conflict of interest.

  • This article is a PNAS Direct Submission.

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The meaning of Neandertal skeletal morphology
Timothy D. Weaver
Proceedings of the National Academy of Sciences Sep 2009, 106 (38) 16028-16033; DOI: 10.1073/pnas.0903864106

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The meaning of Neandertal skeletal morphology
Timothy D. Weaver
Proceedings of the National Academy of Sciences Sep 2009, 106 (38) 16028-16033; DOI: 10.1073/pnas.0903864106
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  • Article
    • Abstract
    • Distinguishing Among Competing Explanations
    • Neandertal Cranial Morphology
    • Neandertal Postcranial Morphology
    • Conclusions
    • Acknowledgments
    • Footnotes
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