TY  - RPRT
TI  - Palynostratigraphy of the Tullock Member (lower Paleocene) of the Fort Union Formation in the Powder River basin, Montana and Wyoming
AU  - Douglas J. Nichols
AU  - Janet L. Brown
PY  - 1992
DO  - 10.3133/b1917f
UR  - https://pubs.usgs.gov/publication/b1917F
ID  - b1917F
ER  -