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By: Stevens, G RType: ArticleIn: PalaeontologyVolume: 7Series:Issue:Date: 1965Page Range: 606--620Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Stevens, G RType: ArticleIn: PalaeontologyVolume: 7Series:Issue:Date: 1965Page Range: 621--629Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Stevens, G RType: ArticleIn: PalaeontologyVolume: 6Series:Issue:Date: 1963Page Range: 690--698Publication Info: London, Palaeontological Association, 1957-Subjects: