Lesquereux, Leo. The Flora of the Dakota Group. U.S. Geological Survey.
Lockley, Martin and Adrian Hunt. 1994. Fossil Footprints of the Dinosaur Ridge Area. Friends of Dinosaur Ridge/University of Colorado at Denver.
Rushforth, Samuel R. 1971. A flora from the Dakota Sandstone Formation (Cenomanian) near Westwater, Grand County, Utah. Biological Series. Vol. 14(3).
Special thanks for valuable assistance to Kristy Alexander, Jill Anderson, Rich Barclay, Donna Braginetz, Tom Fabian, Bob Raynolds, Michele Reynolds, and Pamela Wineman.
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