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fauna of the cannonball marine member of the Lance Formation
1 online resource (76 unnumbered pages) : illustrations, maps.
Title from title screen (viewed September 17, 2014).
Fauna of the cannonball marine member of the Lance Formation, papers
Stanton, T. W. (Timothy William), 1860-1953.
Professional paper (Geological Survey (U.S.)) ; no. 128-a
Shorter contributions to general geology ; 1920