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By: Wilson, Mark A.Type: ArticleIn: PalaeontologyVolume: 29Series:Issue:Date: 1986Page Range: 691--703Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Palmer, T J - Wilson, Mark A.Type: ArticleIn: PalaeontologyVolume: 31Series:Issue:Date: 1988Page Range: 939--949Publication Info: London, Palaeontological Association, 1957-Subjects: