TY  - RPRT
TI  - Charts showing distribution and abundance of fossils in the Phosphoria, Park City, and Shedhorn Formations in Wyoming, Idaho, Utah, and Montana
AU  - Ellis Leon Yochelson
PY  - 1968
DO  - 10.3133/ofr68336
UR  - https://pubs.usgs.gov/publication/ofr68336
ID  - ofr68336
ER  -