TY  - RPRT
TI  - Plant microfossils from the Fort Union Formation
AU  - Robert H. Tschudy
AU  - Sharon D. Van Loenen
PY  - 1966
DO  - 10.3133/ofr66133
UR  - https://pubs.usgs.gov/publication/ofr66133
ID  - ofr66133
ER  -