Wahlman GP, West RR. Fusulinids from the Howe Limestone Member (Red Eagle Limestone, Council Grove Group) in Northeastern Kansas and their Significance to the North American Carboniferous (Pennsylvanian)-Permian Boundary. kgsbulletin. 2010;(258):1-13. doi:10.17161/kgsbulletin.no.258.20368