TY  - RPRT
TI  - The Upper Cretaceous (Turonian) ammonite family Coilopoceratidae Hyatt in the Western Interior of the United States
AU  - W. A. Cobban
AU  - S.C. Hook
PY  - 1980
DO  - 10.3133/pp1192
UR  - https://pubs.usgs.gov/publication/pp1192
ID  - pp1192
ER  -