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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Whybrow, Peter Joseph
    Type: Article
    In: Bulletin of the British Museum (Natural History) Geology
    Volume: 41
    Date: 1987
    Page Range: 447--450
    Publication Info: London, BM(NH),
  2. By: Whybrow, Peter Joseph - Mcclure, H A - Elliott, Graham Francis
    Type: Article
    In: Bulletin of the British Museum (Natural History) Geology
    Volume: 41
    Issue: 4
    Date: 1987-10-29
    Page Range: 371--382
    Publication Info: London, BM(NH),