| details |
Middle Albian |
Late Albian |
Canada(British Columbia) |
Sweet,A.R. Appendix 6. Palynology. (In: Stratigraphy and sedimentology of the Lower Cretaceous Hulcross and Boulder Creek Formations, Northeastern British Columbia.) |
1992 |
| details |
Aptian |
|
Colombia |
PrŠ¶ssl,K.F. et al. The Yavi Formation (Lower Cretaceous), Upper Magdalena Valley Colombia; An integrated sedimentological and palynological study. |
1993 |
| details |
Coniacian |
Santonian |
Canada(Yukon) |
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 Aptian |
|
Colombia |
Streinesberger,L.V. et al. Dating the Yavi Formation (Aptian, Upper Magdalena Valley, Colombia), palynological results. |
1994 |
| details |
Nd |
|
Nd |
Friis,E.M. et al. Fossil floral structures of a basal angiosperm with monocolpate, reticulate-acolumellate pollen from the Early Cretaceous of Portugal. |
2000 |