TY - RPRT TI - Palynological evidence for late miocene, pliocene and early pleistocene climate changes in the middle U.S. Atlantic Coastal Plain AU - J.J. Groot PY - 1991 DO - 10.1016/0277-3791(91)90015-m UR - https://pubs.usgs.gov/publication/70015130 ID - 70015130 ER -