Pabian, Roger K., Rushlau, William J. 2002. Taphonomic Analysis and Systematic Descriptions of Some Late Pennsylvanian and Early Permian Crinoids from Southeastern Nebraska, Eastern Kansas and Southwestern Iowa.(GSP-20): 45 pp., size 8.5" x 11". Description: An assessment of Late Pennsylvanian and Early Permian crinoid abundance and diversity in the North American Midcontinent. Characterization of the epifauna observed on crinoids and evidence for parasitic, commensal, and predatory relations among crinoids and their associated flora and fauna. Two new species are recorded here for the first time.