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  1. By: Engel, Brian A
    Type: Article
    In: Journal and proceedings of the Royal Society of New South Wales
    Volume: 95
    Issue: 6
    Date: 1962-03-30
    Page Range: 197--215
    Publication Info: Sydney C. Potter, Acting. Govt. Printer 1877-
  2. By: Engel, Brian A
    Type: Article
    In: Palaeontology
    Volume: 18
    Date: 1975
    Page Range: 571--605
    Publication Info: London, Palaeontological Association, 1957-