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By: Gobbett, D. J. (Derek John)Type: ArticleIn: PalaeontologyVolume: 4Series:Issue:Date: 1961Page Range: 42--53Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Runnegar, Bruce - Gobbett, D. J. (Derek John)Type: ArticleIn: PalaeontologyVolume: 18Series:Issue:Date: 1975Page Range: 315--322Publication Info: London, Palaeontological Association, 1957-Subjects: