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By: Lespérance, Pierre JType: ArticleIn: PalaeontologyVolume: 33Series:Issue:Date: 1990Page Range: 209--224Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Lespérance, Pierre JType: ArticleIn: Bulletin of the British Museum (Natural History) GeologyVolume: 43Series:Issue:Date: 1988-04-28Page Range: 239--245Publication Info: London, BM(NH),Subjects:
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By: Lespérance, Pierre JType: ArticleIn: Bulletin of the British Museum (Natural History) GeologyVolume: 43Series:Issue:Date: 1988Page Range: 359--376Publication Info: London, BM(NH),Subjects: