| original |
Early Cenomanian |
|
Maryland |
Pedersen,K.R. et al. Fruits from the Mid-Cretaceous of North America with pollen grains of the Clavatipollenites type. |
1991 |
| details |
Early Cenomanian |
|
USA(Atlantic Coast.Pl.) |
Pedersen,K.R. et al. Fruits from the Mid-Cretaceous of North America with pollen grains of the Clavatipollenites type. |
1991 |
| details |
Early Cenomanian |
|
Maryland |
Friis,E.M. et al. Stamen diversity and in situ, pollen of Cretaceous angiosperms. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |
| details |
Cretaceous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Nd |
|
Nd |
Friis,E.M. et al. In situ, pollen and spores in plant evolution. Chapter 14B angiosperm pollen in situ, in Cretaceous reproductive organs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |