Author:

Herrick,S.M.;Tschudy,R.H.

Year:

1967

Title:

Microfossil evidence for correlation of Paleocene strata in Ballard County, Kentucky, with the lower part of the Porter's Creekclay.

Reference:

Herrick,S.M. et al. (1967) Microfossil evidence for correlation of Paleocene strata in Ballard County, Kentucky, with the lower part of the Porter's Creekclay. United States Geological Survey, Professional Paper # 575 P. 40- 44

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