| original |
Valanginian |
|
W.Germany(Rhineland) |
Pflug,H.D. Origin and development of the angiosperm pollen in earth history |
1953 |
| details |
Albian |
|
France |
Pflug,H.D. Origin and development of the angiosperm pollen in earth history |
1953 |
| details |
Valanginian |
|
Germany |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Cenomanian |
Early Senonian |
New York |
Baskerville,C.A. A micropaleontological study of Cretaceous sediments on Staten Island, New York. |
1965 |
| details |
Albian |
|
Spain |
Menendez-Amor,J. A spore-pollen study of the Una Lignites, (Cuenca). |
1970 |