| original |
Eocene |
|
Germany |
Potonie,R. The microscopic research of Brown Coals.Tertiary pollen forms. |
1931 |
| details |
Eocene |
|
W.Germany(Hesse) |
Potonie,R. The microbotany of the Eocene Brown Coal of the Geiseltal. |
1934 |
| details |
Eocene |
|
Germany |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Nd |
|
Nd |
Boulter,M.C. et al. A system of group names for some Tertiary pollen. |
1977 |
| details |
Nd |
|
Nd |
Jansonius,J. et al. Genera File of fossil spores. Supplement 4 |
1980 |