Title: The Cretaceous-Tertiary boundary in the San Juan and Raton Basins, New Mexico and Colorado /
Authors: Fassett, James E.; Rigby, J. Keith; Rigby, J. Keith, 1947-2011
Publisher: Geological Society of America,
Year: 1987
Subjects: Geology, Stratigraphic; Geology, Stratigraphic; Geology San Juan Basin (N.M. and Colo.); Geology Raton Basin (Colo. and N.M.); Cretaceous-Paleogene boundary New Mexico.; Cretaceous-Paleogene boundary Colorado.