| details |
Pliocene |
|
W.Germany(Hesse) |
Frantz,U. Investigation of the spore and pollen flora of the Pliocene of Willershausen |
1961 |
| details |
Pliocene |
|
France(Bretagne) |
Pons,A.H. Palynologic contribution to the study of the Pliocene flora and vegetation of the Rhodanian Region |
1964 |
| details |
Recent |
|
North Carolina |
Sivak,J. New observations on the pollen of Tsuga. |
1973 |
| details |
Reuverian |
|
W.Germany(Hesse) |
Mohr,B.A.R. The microflora of the Lower Pliocene of Willershausen (Kreis Northeim, Niedersachsen). |
1986 |
| details |
Early Miocene |
Middle Miocene |
Alaska |
Leopold,E.B. et al. A long pollen sequence of Neogene age, Alaska range. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) |
1994 |