| original |
Eocene |
|
E.Germany |
Potonie,R. On the microscopy of Browncoal.Tertiary spore and pollen forms: Part 4. |
1931 |
| details |
Eocene |
|
W.Germany(Hesse) |
Potonie,R. The microbotany of the Eocene Brown Coal of the Geiseltal. |
1934 |
| details |
Eocene |
|
W.Germany(Hesse) |
Potonie,R. The microbotany of the Eocene Brown Coal of the Geiseltal. |
1934 |
| original |
Eocene |
|
W.Germany(Hesse) |
Potonie,R. The microbotany of the Eocene Brown Coal of the Geiseltal. |
1934 |
| details |
Nd |
|
Nd |
Boulter,M.C. et al. A system of group names for some Tertiary pollen. |
1977 |
| details |
Nd |
|
Nd |
Boulter,M.C. et al. A system of group names for some Tertiary pollen. |
1977 |