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By: Selwood, E BType: ArticleIn: PalaeontologyVolume: 3Series:Issue:Date: 1960Page Range: 153--185Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Matthews, S C - Sadler, Peter M. - Selwood, E BType: ArticleIn: PalaeontologyVolume: 15Series:Issue:Date: 1972Page Range: 550--568Publication Info: London, Palaeontological Association, 1957-Subjects: