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By: Lehmann, UlrichType: ArticleIn: PalaeontologyVolume: 22Series:Issue:Date: 1979Page Range: 265--271Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Lehmann, UlrichType: ArticleIn: PalaeontologyVolume: 14Series:Issue:Date: 1971Page Range: 338--341Publication Info: London, Palaeontological Association, 1957-Subjects: