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  1. By: Koretsky, Irina A - Ray, Clayton E
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 107
    Date: 1994
    Page Range: 17--26
    Publication Info: Washington, Biological Society of Washington,
  2. By: Ray, Clayton E
    Type: Chapter
    In: Geology and paleontology of the Lee Creek Mine, North Carolina
    Volume: 61
    Date: 1987
    Page Range: 1--8
    Publication Info: City of Washington, Smithsonian Institution Press, 2001
  3. By: Ray, Clayton E
    Type: Chapter
    In: Geology and paleontology of the Lee Creek Mine, North Carolina
    Volume: 90
    Date: 2001
    Page Range: 1--20
    Publication Info: City of Washington, Smithsonian Institution Press, 2001
  4. By: Ray, Clayton E
    Type: Chapter
    In: Geology and paleontology of the Lee Creek Mine, North Carolina
    Volume: 53
    Date: 1983
    Page Range: 1--14
    Publication Info: City of Washington, Smithsonian Institution Press, 2001