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Proceedings Paper

Stereometrics In Primate Taxonomy And Phylogeny
Author(s): Norman Creel
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Paper Abstract

Studies of the systematic relationships within the primate taxa Homo, Hylobatidae (lesser apes), Hominoidea (apes and man) and Colobinae (Asian and African leaf monkeys) are described. All are based in large part on multivariate statistical analyses of cranial morphology. Adequate quantification of the frequently complex and subtle differences in the morphology of the animals being compared, as well as the inclusion of statistically adequate samples of as many presumed species or other groups of interest as possible, are essential to the success of such analyses. Two methods of stereometric measurement have been developed to make this possible. In initial studies of the Hylobatidae and the Hominoidea, a simple mechanical device was designed which determines the tri-dimensional coordinates of an anatomical point by measuring an angle and two distances. An improved version was used in an investigation of Subsaharan human crania. In a taxonomic revision of the Colobinae now in progress, crania are photographed in several views with a pair of metric cameras; point coordinates are then measured in a modified stereoplotter and the views rotated mathematically into a single coordinate system. Although stereometrics is only one component in a complex system of analysis, it is an extremely important one. Taxonomic revisions of the described scope and depth could not be carried out with conventional methods of measurement without a much greater commitment of resources, if at all.

Paper Details

Date Published: 29 July 1980
PDF: 8 pages
Proc. SPIE 0166, NATO Symposium on Applications of Human Biostereometrics, (29 July 1980); doi: 10.1117/12.956968
Show Author Affiliations
Norman Creel, State University of New York at Stony Brook (United States)


Published in SPIE Proceedings Vol. 0166:
NATO Symposium on Applications of Human Biostereometrics
A. M. Coblentz; Robin E. Herron, Editor(s)

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