TY  - RPRT
TI  - Biostratigraphy of the Phosphoria, Park City, and Shedhorn Formations, with a section on fish
AU  - E. L. Yochelson
AU  - D. H. Van Sickle
PY  - 1968
DO  - 10.3133/pp313d
UR  - https://pubs.usgs.gov/publication/pp313D
ID  - pp313D
ER  -