| original |
Late Cretaceous |
|
Colorado |
Clarke,R.T. Palynology of Vermejo Formation Coals, (Upper Cretaceous) in the Canon City Coal Field, Fremont County, Colorado |
1963 |
| original |
Middle Turonian |
Early Santonian |
Utah |
Orlansky,R. Palynology of the Upper Cretaceous Straight Cliffs Sandstone, Garfield County, Utah. |
1967 |
| original |
Late Turonian |
Coniacian |
Utah |
Orlansky,R. Palynology of the Upper Cretaceous Straight Cliffs Sandstone, Garfield County, Utah. |
1971 |
| original |
Late Aptian |
|
Japan(Iwate Pref.) |
Takahashi,K. Palynology of the Upper Aptian Tanohata Formation of the Miyako Group, Northeast Japan. |
1974 |
| original |
Paleogene |
|
India(Assam) |
Salujha,S.K. et al. Palynology of the South Shillong Front, Part 2. The Palaeogenes of Khasi and Jaintia Hills. |
1974 |
| original |
Early Albian |
Middle Albian |
Canada(British Columbia) |
Broatch,J. Palynological zonation and correlation of the Peace River Coalfield northeastern British Columbia: An update. |
1986 |
| original |
Early Campanian |
|
Russia(Taymyr) |
Khomentovskii,O.V. et al. Santonian-Campanian boundary in northern Siberia |
1999 |