Roger K. Pabian

• Agates
• Biometrical study of morphology and development of the Pennsylvanian trilobite Ameura sangamonensis (Meek and Worthen)
• Classification, paleoecology, and biostratigraphy of crinoids from the Stull Shale, late Pennsylvanian of Nebraska, Kansas, and Iowa
• Crinoid studies
• Fossil crinoid studies
• Geology of Pioneers Park, Lancaster County, Nebraska
• Geology of selected sites near the Republican River in Franklin County, Nebraska
• Late Paleozoic cyclic sedimentation in southeastern Nebraska
• Late Pennsylvanian and Early Permian cyclic sedimentation, paleogeography, paleoecology, and biostratigraphy in Kansas and Nebraska
• Record in rock
• Taphonomic analysis and systematic desciptions of some Late Pennsylvanian and Early Permian crinoids from southeastern Nebraska, eastern Kansas and southwestern Iowa
• Taxonomy, paleoecology, and biostratigraphy of the crinoids of the South Bend Limestone (Late Pennsylvanian-Missourian, ?Virgilian) in southeastern Nebraska and southeastern Kansas