- Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum: Fieldiana, Geology, Vol.12, No.8
- Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum: Fieldiana, Geology, Vol.12, No.8
- Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum
- Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Essex Fauna and Medusae: Fieldiana, Geology, Vol.12, No.7
- New Fossil Polychaete From Essex, Illinois: Fieldiana, Geology, Vol.33, No.25