Gilmore, C.W., and Sturdevant, G.E., 1928, Discovery of fossil tracks on the North Rim of the Grand Canyon [abs.]: Science, new series, v. 67, p. 216. Authors Gilmore, C.W., and Sturdevant, G.E. Publication Date 1928 Citation Science, new series, v. 67, p. 216. State AZ Province CP County CN Placenames Kaibab Plateau Keywords Locale Trace Fossil More Keywords Locale, Trace Fossil, AzGeoBib RefNum 3640