Collection of Paleontological samples from Illinois

High-significance paleontological samples, most are cataloged. Includes collections of trilobites, Ordovician echinoderms, plant fossils, crinoids, conodonts, brachiopods, fusulinids, mollusca, corals, Paleocene fossils, blastoids, and several miscellaneous collections. Includes the Worthen Type and Figured Collection (mid 1800s, see ISGS Circular 524), approximately 4000 mostly Pennsylvanian and Mississippian samples primarily collected by M. Weller in the 1930's, and approximately 100 generally small collections of type, figured, or numbered specimens were cataloged starting in the 1950's.