Contributions to Late Cretaceous stratigraphy and paleontology, western Montana, Contents: A, redefinition of Frontier Formation: Beaverhead Group Contact, Lima Peaks area, southwestern Montana and southeaster Idaho, by T.S. Dyman [and others] B, 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, 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
Contributors: Dyman, T.S.; Tysdal, R.G.; Nichols, D.J.; Cobban, W.A.
Publisher: U.S. Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 26
Subjects: Paleontology - Montana; Geology - Montana
Notes: 11