Full reference: R. C. Moore and H. L. Strimple. 1973. Lower Pennsylvanian (Morrowan) crinoids from Arkansas, Oklahoma, and Texas. University of Kansas Paleontological Contributions, Echinodermata Article 60(12):1-84
Type specimen: SUI 33191 (dorsal cup). Its type locality is Northeast of small knoll (Loc. 13), which is in a Morrowan marine limestone/sandstone in the Bloyd Formation of Oklahoma.
Ecology: stationary intermediate-level epifaunal suspension feeder
Average measurements (in mm): dorsal cup 3.50 x 10.00