1. Distribution and stratigraphic correlation of Upper Paleocene and Lower Eocene fossil mammal and plant localities of the Fort Union, Willwood, and Tatman Formations, southern Bighorn Basin, Wyoming Publication/Creation: Denver, CO : U.S. Geological Survey, Map Distribution Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 1540-1542. Access & Availability: Loading
2. Distribution and stratigraphic correlation of Upper Paleocene and Lower Eocene fossil mammal and plant localities of the Fort Union, Willwood, and Tatman Formations, Southern Bighorn Basin, Wyoming Author/Creator: Bown, Thomas M., author Publication/Creation: Washington : U.S. Department of the Interior, U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading