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By: Northcote, E MarjorieType: ArticleIn: PalaeontologyVolume: 27Series:Issue:Date: 1984Page Range: 729--735Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Northcote, E MarjorieType: ArticleIn: PalaeontologyVolume: 31Series:Issue:Date: 1988Page Range: 725--740Publication Info: London, Palaeontological Association, 1957-Subjects: