| details |
Cenomanian |
Coniacian |
Wyoming |
Griggs,P.H. Stratigraphy and palynology of the Frontier Formation, Big Horn Basin, Wyoming |
1970 |
| details |
Late Cretaceous |
Early Paleocene |
Montana |
Norton,N.J. et al. Palynology of the Upper Cretaceous and Lower Tertiary in the type locality of the Hell Creek Formation, Montana, USA. |
1969 |
| details |
Maastrichtian |
Paleocene |
Montana |
Oltz,D.F. Numerical analyses of palynological data from Cretaceous and Early Tertiary sediments in East Central Montana. |
1969 |
| details |
Late Cretaceous |
|
Arizona |
Romans,R.C. Palynology of some Upper Cretaceous Coals of Black Mesa, Arizona |
1969 |
| original |
Eocene |
|
Nevada |
Ting,W.S. Fossil pollen grains of Coniferales from Early Tertiary of Idaho, Nevada and Colorado |
1968 |
| original |
Paleocene |
|
South Dakota |
Stanley,E.A. Upper Cretaceous and Paleocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from northwestern South Dakota. |
1965 |
| original |
Late Cretaceous |
Paleocene |
Montana |
Norton,N.J. Palynology of the Upper Cretaceous and Lower Tertiary in the type locality of the Hell Creek Formation |
1965 |
| details |
Late Cretaceous |
|
Montana |
Melchior,R.C. Pollen and spores of the Shawmut Anticline, Montana. |
1965 |