TY - RPRT TI - Geologic map of the Clifton House quadrangle, showing fossil zones in the Pierre Shale, Colfax County, New Mexico AU - C. L. Pillmore AU - Glenn R. Scott PY - 1994 DO - 10.3133/gq1737 UR - https://pubs.usgs.gov/publication/gq1737 ID - gq1737 ER -