The anomalous archaic Homo femur from Berg Aukas, Namibia: A biomechanical assessment

The probably Middle Pleistocene human femur from Berg Aukas, Namibia, when oriented anatomically and analyzed biomechanically, presents an unusual combination of morphological features compared to other Pleistocene Homo femora. Its midshaft diaphyseal shape is similar to most other archaic Homo, but...

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Published in:American journal of physical anthropology 1999-11, Vol.110 (3), p.379-391
Main Authors: Trinkaus, Erik, Ruff, Christopher B., Conroy, Glenn C.
Format: Article
Language:English
Subjects:
Anatomy
Animals
Archanthropus and paleanthropus
Biology
Biomechanical Phenomena
biomechanics
Climate
Femur - anatomy & histology
Fossils
hominid
Hominidae - anatomy & histology
Hominids
Human evolution
Human paleontology
Humans
lower limb
Methodology and general studies
Namibia
Osteology
Physical anthropology
Physiology
Pleistocene
Prehistory and protohistory
Weight-Bearing
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creator Trinkaus, Erik
Ruff, Christopher B.
Conroy, Glenn C.
description The probably Middle Pleistocene human femur from Berg Aukas, Namibia, when oriented anatomically and analyzed biomechanically, presents an unusual combination of morphological features compared to other Pleistocene Homo femora. Its midshaft diaphyseal shape is similar to most other archaic Homo, but its subtrochanteric shape aligns it most closely with earlier equatorial Homo femora. It has an unusually low neck shaft angle. Its relative femoral head size is matched only by Neandertals with stocky hyperarctic body proportions. Its diaphyseal robusticity is modest for a Neandertal, but reasonable compared to equatorial archaic Homo femora. Its gluteal tuberosity is relatively small. Given its derivation from a warm climatic region, it is best interpreted as having had relatively linear body proportions (affecting proximal diaphyseal proportions, shaft robusticity, and gluteal tuberosity size) combined with an elevated level of lower limb loading during development (affecting femoral head size and neck shaft angle). Am J Phys Anthropol 110:379–391, 1999. © 1999 Wiley‐Liss, Inc.
doi_str_mv 10.1002/(SICI)1096-8644(199911)110:3<379::AID-AJPA9>3.0.CO;2-J
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ispartof American journal of physical anthropology, 1999-11, Vol.110 (3), p.379-391
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source International Bibliography of the Social Sciences (IBSS); Wiley-Blackwell Read & Publish Collection
subjects Anatomy
Animals
Archanthropus and paleanthropus
Biology
Biomechanical Phenomena
biomechanics
Climate
Femur - anatomy & histology
Fossils
hominid
Hominidae - anatomy & histology
Hominids
Human evolution
Human paleontology
Humans
lower limb
Methodology and general studies
Namibia
Osteology
Physical anthropology
Physiology
Pleistocene
Prehistory and protohistory
Weight-Bearing
title The anomalous archaic Homo femur from Berg Aukas, Namibia: A biomechanical assessment
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