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By: Waterston, C. D.Type: ArticleIn: PalaeontologyVolume: 3Series:Issue:Date: 1960Page Range: 245--259Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Waterston, C. D.Type: ArticleIn: PalaeontologyVolume: 5Series:Issue:Date: 1962Page Range: 137--148Publication Info: London, Palaeontological Association, 1957-Subjects: