Author:

Tysdal,R.G.;Nichols,D.J.

Year:

1991

Title:

Biostratigraphic correlation of Santonian and Campanian Formations in the northwestern part of Yellowstone National Park, and the Madison range and Livingston Area of Southwestern Montana. (In: Contributions to Late Cretaceous stratigraphy and paleontology, Western Montana. T.S.Dyman, editor)

Reference:

Tysdal,R.G. et al. (1991) Biostratigraphic correlation of Santonian and Campanian Formations in the northwestern part of Yellowstone National Park, and the Madison range and Livingston Area of Southwestern Montana. (In: Contributions to Late Cretaceous stratigraphy and paleontology, Western Montana. T.S.Dyman, editor) United States Geological Survey, Bulletin # 1962 P. 9- 19

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