TY - RPRT TI - North American nonmarine climates and vegetation during the Late Cretaceous AU - J. A. Wolfe AU - G.R. Upchurch PY - 1987 DO - 10.1016/0031-0182(87)90040-x UR - https://pubs.usgs.gov/publication/70014794 ID - 70014794 ER -