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By: Blows, William TType: ArticleIn: PalaeontologyVolume: 30Series:Issue:Date: 1987Page Range: 557--580Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Blows, William TType: ArticleIn: PalaeontologyVolume: 38Series:Issue:Date: 1995Page Range: 187--197Publication Info: London, Palaeontological Association, 1957-Subjects: