Contributions to stratigraphy
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Contributions to stratigraphy
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Contributions to stratigraphy
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- Changes in stratigraphic nomenclature in the Cretaceous system, east-central Puerto Rico, Reginald P. Briggs ; prepared in cooperation with the Commonwealth of Puerto Rico Economic Development Administration, Industrial Research Department
- Age of the Skooner Gulch Formation, Mendocino County, California, by Warren O. Addicott
- The Kern River Formation, southeastern San Joaquin Valley, California, by J. Alan Bartow and Gardner M. Pittman
- Lower and Middle tertiary stratigraphic units of the San Emigdio and western Tehachapi Mountains, California, by T.H. Nilsen, T.W. Dibblee, Jr., and W.O. Addicott
- Nomenclature of Precambrian rocks in Colorado, by Ogden Tweto
- Marine trace fossils in the Upper Jurassic Bluff Sandstone, southeastern Utah, by Robert B. O'Sullivan and John O. Maberry
- Witts Springs Formation of Morrow age in the Snowball quadrangle, north-central Arkansas, by Ernest E. Glick, Sherwood E. Frezon, and Mackenzie Gordon, Jr
- The Maudlow and Sedan Formations of the upper Cretaceous Livingston Group on the west edge of the Crazy Mountains basin, Montana, by Betty Skipp and L. W. McGrew
- Triassic stratigraphy in the northern part of the Culpeper basin, Virginia and Maryland, by K. Y. Lee
- Four new members of the upper Cretaceous Straight Cliffs Formation in the southeastern Kaiparowits region, Kane County, Utah, by Fred Peterson
- Upper Miocene and Pliocene marine stratigraphy in southern Salinas Valley, California, by David L. Durham and Warren O. Addicott
- Carmel Formation of the Zion Park region, southwestern Utah, a review, by W. B. Cashion
- The Kinnikinic Quartzite of central Idaho, redefinition and subdivision, by S. W. Hobbs, W. H. Hays, and R. J. Ross, Jr
- Four new members of the Upper Cretaceous Straight Cliffs Formation in the southeastern Kaiparowits region, Kane County, Utah, description of new stratigraphic units in a coal-bearing formation of southern Utah, by Fred Peterson
- Porvenir formation (new name)--and other revisions of nomenclature of Mississippian, Pennsylvanian, and lower Permian rocks, southeastern Sangre de Cristo Mountains, New Mexico, by Elmer H. Baltz and Donald A. Myers