| details |
Paleocene |
|
Canada(Alberta) |
Demchuk,T.D. Palynostratigraphic zonation of Paleocene strata in the Central and South-Central Alberta Plains. |
1990 |
| original |
Late Cretaceous |
|
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 |
Late Cretaceous |
|
Montana |
Oltz,D.F. Cluster analyses of Late Cretaceous-Early Tertiary pollen and spores |
1971 |
| original |
Late Cretaceous |
|
Montana |
Norton,N.J. Palynology of the Upper Cretaceous and Lower Tertiary in the type locality of the Hell Creek Formation |
1965 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Early Paleocene |
|
Canada(Alberta) |
Lerbekmo,J.F. et al. Magnetobiostratigraphy of Late Maestrichtian to Early Paleocene strata of the Hand Hills, South Central Alberta, Canada. |
1995 |