Letter | Published:

The tibio-fibular articulation in Apidium phiomense, an Oligocene anthropoid

Nature volume 301, pages 238239 (20 January 1983) | Download Citation

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Abstract

Apidium phiomense, a primitive anthropoid from the Oligocene of Egypt, shows partial fusion of the distal tibio-fibular articulation with extensive apposition of the two bones, a unique condition among higher primates. Functionally, this condition restricts the tibio-talar Joint to simple hinge movements which, together with other features in the skeletal anatomy of A. phiomense, suggests that this species was a leaper. The condition in Apidium suggests phenetic and possible phylogenetic links with platyrrhine monkeys, many of which show similar, but less extensive fibular apposition.

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Author information

Affiliations

  1. Department of Anatomical Sciences, Health Sciences Center, State University of New York, Stony Brook, New York 11794, USA

    • John G. Fleagle
  2. Duke University Center for the Study of Primate Biology and History, 3705 Erwin Road, Durham, North Carolina 27705, USA

    • Elwyn L. Simons

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DOI

https://doi.org/10.1038/301238a0

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