| details |
Cretaceous |
|
Nd |
Osborn,J.M. et al. Comparative ultrastructure of fossil gymnosperm pollen and its phylogenetic implications. (In: Ultrastructure of Fossil Spores and Pollen. M.H.Kurmann and J.A.Doyle, editors) |
1994 |
| details |
Cenomanian |
|
Canada(British Columbia) |
MacLeod,S.E. et al. Conformable Late Jurassic (Oxfordian) to Early Cretaceous strata, Northern Bowser Basin, British Columbia; A sedimentological and paleontological model; Reply. |
1991 |
| details |
Nd |
|
Nd |
Vasanthy,G. et al. The evolution of angiospermid pollen characteristics: Conjectures and Queries. (In: Proceeding of the Symposium on the Vistas in Indian Palaeobotany. K.P.Jain and R.S.Tiwari, editors) |
1990 |
| details |
Middle Albian |
Cenomanian |
Canada(British Columbia) |
Cookenboo,H.O. et al. Jura-Cretaceous (Oxfordian to Cenomanian) stratigraphy of the Northern-Central Bowser Basin northern British Columbia. |
1989 |
| details |
Cenomanian |
|
Minnesota |
Zavada,M.S. et al. Pollen wall ultrastructure of selected dispersed monosulcate pollen from the Cenomanian, Dakota Formation of Central USA |
1988 |
| original |
Maastrichtian |
|
New Jersey |
Waanders,G.L. Palynology of the Monmouth Group (Maestrichtian) from Monmouth County, New Jersey, USA. |
1974 |
| original |
Cenomanian |
|
Minnesota |
Pierce,R.L. Lower Upper Cretaceous plant microfossils from Minnesota. |
1961 |