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By: Liljedahl, LouisType: ArticleIn: PalaeontologyVolume: 34Series:Issue:Date: 1991Page Range: 219--235Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Liljedahl, LouisType: ArticleIn: PalaeontologyVolume: 27Series:Issue:Date: 1984Page Range: 693--698Publication Info: London, Palaeontological Association, 1957-Subjects: