| original |
Late Campanian |
|
Montana |
Tschudy,B.D. Two new fossil pollen genera from Upper Campaniam, (Cretaceous), rocks of Montana. |
1971 |
| details |
Campanian |
|
Montana |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Late Cretaceous |
Early Tertiary |
Nd |
Batten,D.J. et al. Key to the recognition of Normapolles and some morphologically similar pollen Genera. |
1981 |
| details |
Campanian |
|
USA(Rocky Mountains) |
Tschudy,R.H. Geographic distribution and dispersal of Normapolles genera in North America. |
1981 |
| details |
Cretaceous |
|
Nd |
Herngreen,G.F.W. et al. Cretaceous palynofloral Provinces: A review. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |