Author:

Ravn,R.L.;Witzke,B.J.

Year:

1994

Title:

The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors)

Reference:

Ravn,R.L. et al. (1994) The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors) Geological Society of America, Special Paper # 287 P. 111- 128

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