Characteristic Marine Molluscan Fossils from the Dakota Sandstone and Intertongued Mancos Shale, West-central New Mexico

Ammonites and Some Characteristic Bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming

The Ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming: Issue 1787

Stratigraphic Divisions and Geologic History of the Laney Member of the Green River Formation in the Washakie Basin in Southwestern Wyoming: 1972-1973