TY  - BOOK
ED  - United States
ED  - United States
TI  - Shorter contributions to the stratigraphy and geochronology of Upper Cretaceous rocks in the Western Interior of the United States / 
U1  - 551.7709786 20th ed.
PY  - 1995///.
CY  - Washington: 
PB  - United States Government Printing Office, 
KW  - Geology, Stratigraphic
KW  - Cretaceous
KW  - Geology
KW  - Montana
N1  - This volume is published as chapter A-C. These chapters are not available separately; Conduct diagr.: Measured sections of the upper cretaceous upper part of the frontier formation and lower part of the beaverhead group, Lima Peaks area, southwestern montana and southeastern Idaho; Includes bibliographical references (p. C5-C6);  -- A. Conglomerate facies and contact relationships of the Upper Cretaceous upper part of the Frontier Formation and lower part of the Beaverhead Group, Lima Peaks area, southwestern Montana and southeastern Idaho / by T. S. Dyman, J. C. Haley, and W. J. Perry, Jr. -- B. U-Pb ages of volcanogenic zircon from porcellanite beds in the Vaughn member of the mid-Cretaceous Blackleaf Formation, southwestern Montana / by R. E. Zartman...[et al.]. -- C. Occurrences of the free-swimming Upper Cretaceous crinoids Uintacrinus and Marsupites in the western interior of the United States / by William A. Cobban
ER  -