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By: Din, V K - Symes, Robert Frederick - Williams, C TType: ArticleIn: Bulletin of the British Museum (Natural History) GeologyVolume: 40Series:Issue: 5Date: 1986-12-18Page Range: 247--258Publication Info: London, BM(NH),Subjects:
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By: Williams, C T - Symes, Robert F - Din, V KType: ArticleIn: Bulletin of the British Museum (Natural History) GeologyVolume: 49Series:Issue: 2Date: 1993-11-25Page Range: 81--98Publication Info: London, BM(NH),Subjects: