The formation is described by W.G. Pierce as gray to white clayey sand, drab sandstone, gray and brown shale, and bentonitic clay. It can form badlands.[1]
Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[2]
^Pierce, W.G., 1997, Geologic map of the Cody 1 degree x 2 degrees quadrangle, northwestern Wyoming: U.S. Geological Survey, Miscellaneous Geologic Investigations Map I-2500, scale 1:250000.
^Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
References
Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN0-520-24209-2.