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By: Frank, GerdaType: ArticleIn: Field Museum of Natural History bulletinVolume: 45Series:Issue: 8Date: 1974Page Range: 2--13Publication Info: [Chicago, Ill.], The Museum, [1972]-©1990Subjects:
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By: Frank, GerdaType: ArticleIn: Field Museum of Natural History bulletinVolume: 52Series:Issue: 7Date: 1981Page Range: 20--26Publication Info: [Chicago, Ill.], The Museum, [1972]-©1990Subjects: