| Late Mississippian Fauna from the Redoak Hollow Formation of Southern Oklahoma, Part I * | Maxim K. Elias | Journal of Paleontology, Vol. 31, No. 2 (Mar., 1957), pp. 370-427 |
| Some Mississippian Cephalopods from Central and Western United States * | A. K. Miller, H. R. Downs, Walter Youngquist | Journal of Paleontology, Vol. 23, No. 6 (Nov., 1949), pp. 600-612 |
| Carbonate platform facies and new stratigraphic nomenclature of the Morrow Series (Lower and Middle Pennsylvanian), northeastern Oklahoma | Sutherland, P. K. and T. W. Henry. | Geol. Soc. Am. Bull. 88:425-440, 1977 |
| Morrow Series of northeastern Oklahoma | Moore, C. A. | Okla. Geol. Surv. Bull. 66:1-151. 1947 |
| The origin and age of the boulder-bearing Johns Valley Shale in the Ouachita Mountains of Arkansas and Oklahoma | Moore, R. C. | Am. J. Sci. 5th Ser. 27:432-453. 1934 |
| The fauna of the Morrow Group of Arkansas and Oklahoma |
Mather, Kirtley F. | Denison Univ., Jour. Sci. Labs., v. 18, p. 59-284, 16 pl., 1915 |