Russel A. Peppers

Distribution of boghead algae in Illinois Basin coal beds

Palynological correlation of major Pennsylvanian (Middle and Upper Carboniferous) chronostratigraphic boundaries in the Illinois and other coal basins

Correlation and palynology of coals in the Carbondale and Spoon formations (Pennsylvanian) of the northeastern part of the Illinois Basin

Palynology and petrography of a Middle Devonian coal in Illinois

Spores in strata of late Pennsylvanian cyclothems in the Illinois Basin