Contributions to Late Cretaceous stratigraphy and paleontology, western Montana.
Dyman, T. S.Redefinition of Frontier Formation-Beaverhead Group contact, Lima Peaks area, southwestern Montana and southeastern Idaho.1991.
Tysdal, Russell G.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.1991.
Cobban, William Aubrey,1916-Occurrence and significance of the middle Turonian (Upper Cretaceous) belemnite Actinocamax in central western Montana.1991.
Geological Survey (U.S.)
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section,
1991.
"This volume is published as chapters A-C. These chapters are not available separately."
Shipping list no.: 91-790-P.
Includes bibliographical references (p. 26).
A. Redefinition of Frontier Formation-Beaverhead Group contact, Lima Peaks area, southwestern Montana and southeastern Idaho / by T.S. Dyman, J.C. Haley, and W.J. Perry, Jr. -- B. Biostratigraphic correlation of Santonian and Campanian formations in the northwestern part of Yellowstone National Park, Madison Range, and Livingston area of southwestern Montana / by R.G. Tysdal and D.J. Nichols -- C. Occurrence and significance of the middle Turonian (Upper Cretaceous) belemnite Actinocamax in central western Montana / by William A. Cobban.
Geology, Stratigraphic
Paleontology
Geology
Geology
Paleontology