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By: Andrews, Henry N - Gensel, Patricia G - Forbes, William HType: ArticleIn: PalaeontologyVolume: 17Series:Issue:Date: 1974Page Range: 387--408Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Gensel, Patricia G - Chaloner, W. G. (William Gilbert) - Forbes, William HType: ArticleIn: PalaeontologyVolume: 34Series:Issue:Date: 1991Page Range: 149--168Publication Info: London, Palaeontological Association, 1957-Subjects: