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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Barr, F. T.
    Type: Article
    In: Palaeontology
    Volume: 9
    Date: 1966
    Page Range: 220--243
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Barr, F. T.
    Type: Article
    In: Palaeontology
    Volume: 9
    Date: 1966
    Page Range: 492--510
    Publication Info: London, Palaeontological Association, 1957-
  3. By: Barr, F. T.
    Type: Article
    In: Palaeontology
    Volume: 4
    Date: 1962
    Page Range: 552--580
    Publication Info: London, Palaeontological Association, 1957-