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By: Lockley, M G - Antia, D D JType: ArticleIn: PalaeontologyVolume: 23Series:Issue:Date: 1980Page Range: 707--713Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Williams, Alwyn - Lockley, M G - Hurst, J MType: ArticleIn: PalaeontologyVolume: 24Series:Issue:Date: 1981Page Range: 661--694Publication Info: London, Palaeontological Association, 1957-Subjects: