TY - RPRT TI - Palynomorph biostratigraphy and paleoecology of Upper Cretaceous sediments from four cores from Screven and Burke Counties, Georgia AU - Norman O. Frederiksen AU - Lucy E. Edwards AU - Ronald J. Litwin PY - 2001 DO - 10.3133/pp1603c UR - https://pubs.usgs.gov/publication/pp1603C ID - pp1603C ER -