Quantitative three-dimensional shape analysis of the proximal hallucial metatarsal articular surface in homo, Pan, Gorilla, and Hylobates

Daniel J. Proctor, Douglas Broadfield, Kristopher Proctor

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Multidimensional morphometrics is used to compare the proximal articular surface of the first metatarsal between Homo, Pan, Gorilla, Hylobates, and the hominin fossils A.L. 333-54 (A. afarensis), SKX 5017 (P. robustus), and OH 8 (H. habilis). Statistically significant differences in articular surface morphology exist between H. sapiens and the apes, and between ape groups. Ape groups are characterized by greater surface depth, an obliquely curved articular surface through the dorso-lateral and medio-plantar regions, and a wider medio-lateral surface relative to the dorso-plantar height. The OH 8 articular surface is indistinguishable from H. sapiens, while A.L. 333-54 and SKX 5017 more closely resemble the apes. P. robustus and A. afarensis exhibit ape-like oblique curvature of the articular surface.

Original languageEnglish (US)
Pages (from-to)216-224
Number of pages9
JournalAmerican Journal of Physical Anthropology
Volume135
Issue number2
DOIs
StatePublished - Feb 1 2008
Externally publishedYes

Keywords

  • Bipedalism
  • Foot
  • Hominin

ASJC Scopus subject areas

  • Anatomy
  • Anthropology

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