TY  - RPRT
TI  - Heteromorph ammonites from the Upper Campanian (Upper Cretaceous) Baculites cuneatus and Baculites reesidei zones of the Pierre Shale in Colorado, USA
AU  - W. J. Kennedy
AU  - William A. Cobban
AU  - Glenn R. Scott
PY  - 2000
UR  - https://pubs.usgs.gov/publication/70022241
ID  - 70022241
ER  -