Brew, D.C., 1979, Biostratigraphy of the Naco Formation (Pennsylvanian) in central Arizona, in Beus, S.S., and Rawson, R.R., eds., Carboniferous stratigraphy in the Grand Canyon country, northern Arizona and southern Nevada, International Congress of Carboniferous Stratigraphy and Geology, 9th, Field Trip 13: American Geological Institute Selected Guidebook Series no. 2, p. 119-125.
American Geological Institute Selected Guidebook Series no. 2, p. 119-125.
CN NA AP YA GI
Biostratigraphy, Locale, Correlation, Invertebrate, Microfossil, [Naco Group][Naco Fm](Naco Limestone) - Pennsylvanian/Permian,