| details |
Cenomanian |
|
North America |
Lupia,R. Discordant morphological disparity and taxonomic diversity during the Cretaceous angiosperm radiation: North American pollen record. |
1999 |
| details |
Cenomanian |
|
Arizona |
Canright,J.E. et al. Biostratigraphy of some Cretaceous microfloras from Arizona. |
1979 |
| details |
Late Santonian |
Early Campanian |
Canada(Alberta) |
Braman,D.R. Terrestrial palynomorphs of the Upper Santonian - ?Lower Campanian Milk River Formation, southern Alberta, Canada. |
2001 |
| original |
Cenomanian |
|
Arizona |
Agasie,J.M. Late Cretaceous palynomorphs from northeastern Arizona. |
1969 |