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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Walmsley, Victor G.
    Type: Article
    In: Palaeontology
    Volume: 8
    Date: 1965
    Page Range: 454--477
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Walmsley, Victor G. - Boucot, A. J. (Arthur James),
    Type: Article
    In: Palaeontology
    Volume: 14
    Date: 1971
    Page Range: 487--531
    Publication Info: London, Palaeontological Association, 1957-
  3. By: Walmsley, Victor G. - Boucot, A. J. (Arthur James), - Harper, C W - Savage, Norman M.
    Type: Article
    In: Palaeontology
    Volume: 11
    Date: 1968
    Page Range: 306--316
    Publication Info: London, Palaeontological Association, 1957-