Keyes, Charles, 1930, Earliest mention of Devonic rocks in Arizona: Pan-American Geologist, v. 54, no. 5, p. 377-380. Authors Keyes, Charles Publication Date 1930 Citation Pan-American Geologist, v. 54, no. 5, p. 377-380. State AZ Province AL County AL Keywords History Stratigraphy Devonian More Keywords History, Stratigraphy, Devonian, AzGeoBib RefNum 5275