TY  - RPRT
TI  - A new Cretaceous-Tertiary boundary locality in the western Powder River basin, Wyoming: Biological and geological implications
AU  - D. J. Nichols
AU  - J. L. Brown
AU  - M. Attrep
AU  - C. J. Orth
PY  - 1992
DO  - 10.1016/0195-6671(92)90026-m
UR  - https://pubs.usgs.gov/publication/70017160
ID  - 70017160
ER  -