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By: Hanson, PhilipType: ArticleIn: Field Museum of Natural History bulletinVolume: 51Series:Issue: 5Date: 1980Page Range: 12--13Publication Info: [Chicago, Ill.], The Museum, [1972]-©1990Subjects:
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By: Hanson, PhilipType: ArticleIn: Field Museum of Natural History bulletinVolume: 48Series:Issue: 7Date: 1977Page Range: 10--17Publication Info: [Chicago, Ill.], The Museum, [1972]-©1990Subjects: