Williams, H.S., 1891, Correlation papers; Devonian and Carboniferous: U.S. Geological Survey Bulletin 80, 279 p. Authors Williams, H.S. Publication Date 1891 Citation U.S. Geological Survey Bulletin 80, 279 p. State AZ Province CP TR County CN MO Keywords Biostratigraphy Correlation Devonian Mississippian Pennsylvanian More Keywords Biostratigraphy, Correlation, Devonian, Mississippian, Pennsylvanian, AzGeoBib RefNum 11173