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Quantitative three‐dimensional shape analysis of the proximal hallucial metatarsal articular surface in Homo , Pan , Gorilla , and Hylobates
Author(s) -
Proctor Daniel J.,
Broadfield Douglas,
Proctor Kristopher
Publication year - 2008
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.20723
Subject(s) - gorilla , articular surface , homo sapiens , hylobates , bipedalism , anatomy , morphometrics , hominidae , biology , zoology , geography , paleontology , biological evolution , archaeology , genetics
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. Am J Phys Anthropol, 2008. © 2007 Wiley‐Liss, Inc.