University of Illinois Urbana-Champaign

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Showing 1–30 of 10,901 items
Thumbnail for Corwin & Mary A. Leeper oral history
Corwin & Mary A. Leeper oral history
Leeper, Corwin; Leeper, Mary A.

Thumbnail for Chitinozoan faunule of the Devonian Cedar Valley formation
Chitinozoan faunule of the Devonian Cedar Valley formation
Collinson, Charles William; Scott, Alan Johnson

Thumbnail for Age of the Springville shale (Mississippian) of Southern Illinois
Age of the Springville shale (Mississippian) of Southern Illinois
Collinson, Charles William; Scott, Alan Johnson