IU Paleontology Collection

Contact information:

With permission from its curators, researchers may gain access to the Collection by visiting Indiana University or via loan. For inquiries about the collection write to: Dr. Claudia Johnson,,
or Dr. David Polly,


The IU Paleontology Collection is a public trust research repository for fossil material. Its 1.3 million specimens document past research projects and serve as a resource for new synthetic research on stratigraphy, paleoecology, evolution, and the biotic effects of climate change. Our holdings are especially strong for the Paleozoic of North America, including Cambrian trilobites in the Deiss collection, the late Ordovician of the Cincinnati Arch, the Devonian and Silurian of the Midwest, the Carboniferous of North America, and conodonts from the Rexroad collection.

Important sections of the collection include more than 1000 nomenclatorial type specimens; systematic collections made by E. R. Cummings to document the faunal changes across the Ordovician-Silurian boundary in Indiana; conodont material assembled by Carl Rexroad; the J. J. Galloway micropaleontology collection; Mississippian crinoid faunas collected by Gary Lane, Tom Kammer, and William Ausich; and fossils from US public lands that are held in trust for the US Government.

More than 325 research publications and almost 50 dissertations and theses have been based on IU’s material.

The Collection is organized stratigraphically and, since 2015, is housed in secure, climate controlled space in the Geology Building that was renovated with funds from NSF and the American Recovery and Reinvestment Act of 2009 (DBI-0846697), the College of Arts and Sciences, and the Department of Geological Sciences.

For more information on the IU Paleontology Collection and its holdings visit: this website