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  1. By: Gobbett, D. J. (Derek John)
    Type: Article
    In: Palaeontology
    Volume: 4
    Date: 1961
    Page Range: 42--53
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Runnegar, Bruce - Gobbett, D. J. (Derek John)
    Type: Article
    In: Palaeontology
    Volume: 18
    Date: 1975
    Page Range: 315--322
    Publication Info: London, Palaeontological Association, 1957-