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By: Schlitter, Duane A. - Rautenbach, I. L. - Coetzee, C. G.Type: ArticleIn: Annals of the Carnegie MuseumVolume: 53Series:Issue:Date: 1984-12-14Page Range: 549--557Publication Info: [Pittsburgh], Published by authority of the Board of Trustees of the Carnegie Institute, 1901-Subjects: