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By: Loydell, David K - Štorch, Petr - Melchin, Michael JType: ArticleIn: PalaeontologyVolume: 36Series:Issue:Date: 1993Page Range: 909--926Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Melchin, Michael JType: ArticleIn: PalaeontologyVolume: 41Series:Issue:Date: 1998Page Range: 263--315Publication Info: London, Palaeontological Association, 1957-Subjects: