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By: Powell, E N - Stanton, R JType: ArticleIn: PalaeontologyVolume: 28Series:Issue:Date: 1985Page Range: 1--34Publication Info: London, Palaeontological Association, 1957-Subjects:
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By: Choi, Kwang-Sik - Powell, E N - Lewis, D H - Ray, S MType: ArticleIn: The Biological bulletinVolume: 186Series:Issue:Date: 1994-02-01Page Range: 41--61Publication Info: Woods Hole, Mass Marine Biological LaboratorySubjects:
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By: Cummins, Hays - Powell, E N - Stanton, R J - Staff, GType: ArticleIn: PalaeontologyVolume: 29Series:Issue:Date: 1986Page Range: 495--518Publication Info: London, Palaeontological Association, 1957-Subjects: