| details |
Late Albian |
Early Maastrichtian |
Montana |
Nichols,D.J. et al. Reinterpretation of palynology and age of Laramide Syntectonic deposits, Southwestern Montana and revision of the Beaverhead Group |
1985 |
| details |
Late Maastrichtian |
|
USA |
Nichols,D.J. Latitudinal variation in terrestrial palynomorph assemblages from Maestrichtian deposits in Western North America |
1984 |
| details |
Santonian |
Maastrichtian |
USA(Rocky Mountains) |
Nichols,D.J. et al. Cretaceous palynomorph biozones for the Central and northern Rocky Mountain Region of the United States. |
1982 |
| details |
Late Cretaceous |
|
Colorado |
Nichols,D.J. Palynomorph assemblages from Uppermost Cretaceous deposits, Denver Basin, Colorado. |
1985 |
| details |
Coniacian |
Maastrichtian |
Wyoming |
Nichols,D.J. et al. Cretaceous biostratigraphy in the Wyoming Thrust Belt |
1982 |
| details |
Coniacian |
Maastrichtian |
Utah |
Nichols,D.J. et al. Cretaceous biostratigraphy in the Wyoming Thrust Belt |
1982 |
| details |
Early Eocene |
|
Wyoming |
Nichols,D.J. Palynology of the Vermillion Creek Coal Bed and associated strata. (In: Geological Investigations of the Vermillion Creek Coal Bed in the Eocene Niland Tongue of the Wasatch Formation, Sweetwater County, Wyoming. H.W. Roehler and P.L. Martin, editors) |
1987 |
| details |
Maastrichtian |
|
North Dakota |
Nichols,D.J. et al. Plant microfossil record of the terminal Cretaceous event in the Western United States and Canada. (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors) |
1990 |
| details |
Early Paleocene |
|
Wyoming |
Nichols,D.J. et al. Plant microfossil record of the terminal Cretaceous event in the Western United States and Canada. (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors) |
1990 |
| details |
Late Maastrichtian |
|
North America |
Nichols,D.J. et al. Palynological evidence of effects of the terminal Cretaceous event on terrestrial floras in Western North America. (In: Extinction events in earth history. IGCP, Proceeding of Project 216. E.G.Kauffman and O.H.Walliser, editors) |
1990 |
| details |
Late Maastrichtian |
|
Montana |
Nichols,D.J. et al. Biostratigraphy of Upper Cretaceous non-marine palynofloras in a north-south transect of the Western Interior Basin. (In: Evolution of the Western Interior Basin) |
1993 |
| details |
Late Maastrichtian |
|
Colorado |
Nichols,D.J. et al. Biostratigraphy of Upper Cretaceous non-marine palynofloras in a north-south transect of the Western Interior Basin. (In: Evolution of the Western Interior Basin) |
1993 |
| details |
Late Campanian |
|
Utah |
Myung-Suk,Y. et al. Palynostratigraphy of Upper Cretaceous-Lower Tertiary strata, Price Canyon, Utah. |
1997 |
| details |
Late Cretaceous |
|
Wyoming |
Meyers,W.C. Environmental analysis of Almond Formation (Upper Cretaceous), from Rock Springs Uplift, Wyoming. |
1977 |
| details |
|
|
India(Andhra Pradesh) |
Mehrotra,N.C. et al. Krishna-Godavari Basin. (In: Palynology in Hydrocarbon Exploration:The Indian Scenario. Part 1: Category I : Basins) |
2002 |
| original |
Campanian |
Maastrichtian |
California |
Mcleroy,C.A. et al. Upper Cretaceous, (Campanian-Maastrichtian), angiosperm pollen from the western San Joaquin Valley, California. |
1970 |
| original |
Turonian |
Early Campanian |
Utah |
May,F.E. A survey of palynomorphs from several coal-bearing horizons of Utah. |
1972 |