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By: Callomon, John H. (John Hannes), - Wright, J. K. (John Kenneth)Type: ArticleIn: PalaeontologyVolume: 32Series:Issue:Date: 1989Page Range: 799--836Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Wright, J. K. (John Kenneth)Type: ArticleIn: PalaeontologyVolume: 39Series:Issue:Date: 1996Page Range: 433--469Publication Info: London, Palaeontological Association, 1957-Subjects: