| details |
Early Campanian |
Middle Campanian |
Canada(Alberta) |
Jarzen,D.M. et al. Evolutionary significance and botanical relationships of Cretaceous angiosperm pollen in the Western Canadian Interor. |
1975 |
| details |
Middle Campanian |
Late Campanian |
Colorado |
Gies,T.F. Palynology of sediments boardering some Upper Cretaceous strand lines in Northwestern Colorado. |
1972 |
| details |
Albian |
Danian |
China(Heilungkiang) |
Gao,R.-Q. Evolutionary trends of Cretaceous angiospermous pollen from the Songliao Basin, northeast China. |
1982 |
| details |
Late Cretaceous |
Early Tertiary |
North America |
Farabee,M.J. Triprojectate fossil pollen genera. |
1990 |
| details |
Nd |
|
Nd |
Farabee,M.J. Morphology of Triprojectate fossil pollen: form and distribution in space and time. |
1993 |
| details |
Campanian |
|
Canada(Alberta) |
Farabee,M.J. Morphology of Triprojectate fossil pollen: form and distribution in space and time. |
1993 |