TY  - RPRT
TI  - Biostratigraphic data from Upper Cretaceous formations-eastern Wyoming, central Colorado, and northeastern New Mexico
AU  - E.A. Merewether
AU  - W. A. Cobban
AU  - J. D. Obradovich
PY  - 2011
DO  - 10.3133/sim3175
UR  - https://pubs.usgs.gov/publication/sim3175
ID  - sim3175
ER  -