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  1. By: Swan, Andrew R H - Kershaw, Stephen
    Type: Article
    In: Palaeontology
    Volume: 37
    Date: 1994
    Page Range: 409--423
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Webb, Laurence P - Swan, Andrew R H
    Type: Article
    In: Palaeontology
    Volume: 39
    Date: 1996
    Page Range: 471--475
    Publication Info: London, Palaeontological Association, 1957-
  3. By: Swan, Andrew R H
    Type: Article
    In: Palaeontology
    Volume: 31
    Date: 1988
    Page Range: 1033--1051
    Publication Info: London, Palaeontological Association, 1957-