TY  - RPRT
TI  - The Upper Cretaceous ammonite Rhaeboceras Meek in the Western Interior of the United States
AU  - W. A. Cobban
PY  - 1987
DO  - 10.3133/pp1477
UR  - https://pubs.usgs.gov/publication/pp1477
ID  - pp1477
ER  -