Calder, John H.; Nelson, W. John; Bashforth, Arden R.; Wittry, Jack; Elrick, Scott D.; DiMichele, William A.(2023)
Four collections of Middle Pennsylvanian plant fossils create an opportunity to examine a transect from below the Colchester Coal through the roof shale of the Cardiff (Survant) Coal of the Illinois Basin. The collections ...
