Matthew, W. D., and Granger, W., 1917, The skeleton of Diatryma, a gigantic bird from the Lower Eocene of Wyoming: Bulletin of the American Museum of Natural History, v. 37, p. 307-326.

Pierce, W. G., 1968, Tectonic denudation as exemplified by the Heart Mountain fault, Wyoming: Transactions, XXIII International Geological Congress, v. 3, p. 191-197.

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