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  1. By: Pigg, Kathleen B - Rothwell, Gar W
    Type: Article
    In: Palaeontology
    Volume: 28
    Date: 1985
    Page Range: 545--553
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Rothwell, Gar W - Scott, Andrew Cunningham
    Type: Article
    In: Bulletin of the British Museum (Natural History) Geology
    Volume: 44
    Issue: 1
    Date: 1988-06-30
    Page Range: 41--43
    Publication Info: London, BM(NH),
  3. By: Rothwell, Gar W
    Type: Article
    In: Palaeontology
    Volume: 19
    Date: 1976
    Page Range: 307--315
    Publication Info: London, Palaeontological Association, 1957-