| original |
Middle Cenomanian |
|
Canada(Alberta) |
Singh,C. Cenomanian microfloras of the Peace River area Northwestern Alberta |
1983 |
| details |
Middle Albian |
Early Cenomanian |
Egypt |
Aboul Ela,N.M. et al. Albian-Cenomanian miospores from the subsurface of North Western Desert, Egypt. |
1992 |
| details |
Middle Cenomanian |
|
Canada(Alberta) |
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 |
Early Cenomanian |
|
Iowa |
Ravn,R.L. et al. The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors) |
1994 |
| details |
Middle Cenomanian |
|
Iowa |
Ravn,R.L. et al. The palynostratigraphy of the Dakota Formation, (?Late Albian-Cenomanian) in its type area, northwestern Iowa and northeastern Nebraska, USA. |
1995 |
| details |
Cenomanian |
|
North America |
Lupia,R. Discordant morphological disparity and taxonomic diversity during the Cretaceous angiosperm radiation: North American pollen record. |
1999 |