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By: Jell, John S - Sutherland, Patrick KType: ArticleIn: PalaeontologyVolume: 33Series:Issue:Date: 1990Page Range: 769--821Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Sorauf, J E - Jell, John SType: ArticleIn: PalaeontologyVolume: 20Series:Issue:Date: 1977Page Range: 1--19Publication Info: London, Palaeontological Association, 1957-Subjects: