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By: Austin, Ronald L - Rhodes, F H TType: ArticleIn: PalaeontologyVolume: 12Series:Issue:Date: 1969Page Range: 400--405Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Von Bitter, Peter H. - Austin, Ronald LType: ArticleIn: PalaeontologyVolume: 27Series:Issue:Date: 1984Page Range: 95--111Publication Info: London, Palaeontological Association, 1957-Subjects: