TY  - RPRT
TI  - Palynological and iridium anomalies at Cretaceous-Tertiary boundary, south-central Saskatchewan
AU  - D. J. Nichols
AU  - D.M. Jarzen
AU  - C. J. Orth
AU  - P. Q. Oliver
PY  - 1986
DO  - 10.1126/science.231.4739.714
UR  - https://pubs.usgs.gov/publication/70014520
ID  - 70014520
ER  -