Cross-sectional morphology of the SK 82 and 97 proximal femora

Christopher B Ruff, Henry M. McHenry, J. Francis Thackeray

Research output: Contribution to journalArticle

Abstract

Computed tomography scans of the proximal femoral shaft of the South African 'robust' australopithecine, A. robustus, reveal a total morphological pattern that is similar to the specimen attributed to A. boisei in East Africa but unlike that of Homo erectus or modern human femora. Like femora attributed to H. erectus, SK 82 and 97 have very thick cortices, although they do not have the extreme increase in mediolateral buttressing that is so characteristic of H. erectus. And unlike H. erectus or modern humans, their femoral heads are very small relative to shaft strength. These features are consistent with both increased overall mechanical loading of the postcranial skeleton and a possibly slightly altered pattern of bipedal gait relative to that of H. erectus and modern humans.

Original languageEnglish (US)
Pages (from-to)509-521
Number of pages13
JournalAmerican Journal of Physical Anthropology
Volume109
Issue number4
DOIs
StatePublished - Aug 1999

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East Africa
femur
Femur
thighs
Thigh
Eastern Africa
Hominidae
Homo
gait
computed tomography
Gait
Skeleton
skeleton
cortex
Tomography

Keywords

  • Australopithecus
  • Biomechanics
  • Femur
  • Gait
  • Paranthropus

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Anthropology

Cite this

Cross-sectional morphology of the SK 82 and 97 proximal femora. / Ruff, Christopher B; McHenry, Henry M.; Thackeray, J. Francis.

In: American Journal of Physical Anthropology, Vol. 109, No. 4, 08.1999, p. 509-521.

Research output: Contribution to journalArticle

Ruff, Christopher B ; McHenry, Henry M. ; Thackeray, J. Francis. / Cross-sectional morphology of the SK 82 and 97 proximal femora. In: American Journal of Physical Anthropology. 1999 ; Vol. 109, No. 4. pp. 509-521.
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