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By: Berg-Madsen, VivianneType: ArticleIn: PalaeontologyVolume: 30Series:Issue:Date: 1987Page Range: 105--116Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Berg-Madsen, Vivianne - Peel, John SType: ArticleIn: PalaeontologyVolume: 37Series:Issue:Date: 1994Page Range: 505--512Publication Info: London, Palaeontological Association, 1957-Subjects: