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By: Baxendale, R. William (Ralph William), - Baxter, Robert WType: ArticleIn: The University of Kansas science bulletinVolume: 51Series:Issue: 9Date: 1977-12-23Page Range: 283--289Publication Info: [Lawrence] University of Kansas [1926-1996]Subjects:
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By: Baxendale, R. William (Ralph William),Type: ArticleIn: PalaeontologyVolume: 22Series:Issue:Date: 1979Page Range: 537--548Publication Info: London, Palaeontological Association, 1957-Subjects: