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Original published in D.F. Merriam, ed., 1964, Symposium on cyclic sedimentation: Kansas Geological Survey, Bulletin 169, pp. 171-181 |
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Figure 1--Generalized geologic summary of biostratigraphic analysis of Sappington Formation of western Montana and its relationship to underlying Three Forks Formation and overlying Lodgepole Limestone (Gutschick, Suttner, and Switek, 1962).
