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By: De Beer, Gavin - Rowlands, M JType: ArticleIn: Bulletin of the British Museum (Natural History) Historical SeriesVolume: 2Series:Issue: 6Date: 1961-10-24Page Range: 185--200Publication Info: London, BM(NH),Subjects:
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By: De Beer, Gavin - Rowlands, M J - Skramovsky, B MType: ArticleIn: Bulletin of the British Museum (Natural History) Historical SeriesVolume: 3Series:Issue: 5Date: 1967-03-21Page Range: 129--176Publication Info: London, BM(NH),Subjects: