SAWIN, Robert S.; FRANSEEN, Evan K.; WATNEY, W. Lynn; WEST, Ronald R.; LUDVIGSON, Greg A. New Stratigraphic Rank for the Carboniferous, Mississippian, and Pennsylvanian in Kansas. Current Research in Earth Sciences, [S. l.], n. 256, p. 1–4, 2009. DOI: 10.17161/cres.v0i256.11846. Disponível em: https://journals.ku.edu/cres/article/view/11846.. Acesso em: 24 aug. 2024.