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  1. By: Ramsbottom, W H C
    Type: Article
    In: Palaeontology
    Volume: 1
    Date: 1958
    Page Range: 106--115
    Publication Info: London, Palaeontological Association, 1957-
  2. By: Ramsbottom, W H C
    Type: Article
    In: The Bulletin of zoological nomenclature
    Volume: 28
    Date: 1971
    Page Range: 161--163
    Publication Info: London, International Trust for Zoological Nomenclature,