References
- Collett, J. 1876. Vanderburg, Owen, and Montgomery Counties. In Indiana Dept. Geol. & Nat. History, Ann. Rept. 7:240–462.
- Hovey, E. O. 1867. The crinoidal banks of Crawfordsville, Indiana. American Naturalist 1:554–555.
- Lane, N. G. 1973. Paleontology and paleoecology of the Crawfordsville fossil site (Upper Osagian: Indiana). Univ. California Publ. Geol. Sciences. Univ. California Press.
- Van Sant, J. F., and N. G. Lane. 1964. Crawfordsville (Indiana) crinoid studies. Univ. Kansas Paleont. Contr. Art. 7.