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By: Jones, Brian - Hurst, John MType: ArticleIn: PalaeontologyVolume: 27Series:Issue:Date: 1984Page Range: 699--706Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Hurst, John MType: ArticleIn: Bulletin of the British Museum (Natural History) GeologyVolume: 32Series:Issue:Date: 1979Page Range: 183--304Publication Info: London, BM(NH),Subjects: