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  1. By: Appleby, R M
    Type: Article
    In: Palaeontology
    Volume: 22
    Date: 1979
    Page Range: 921--946
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Appleby, R M - Jones, G L
    Type: Article
    In: Palaeontology
    Volume: 19
    Date: 1976
    Page Range: 565--586
    Publication Info: London, Palaeontological Association, 1957-