| details |
Late Cretaceous |
|
Canada(Alberta) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| details |
Eocene |
|
USA |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| details |
Paleocene |
|
Montana |
Wilson,L.R. et al. Plant microfossils from a Fort Union Coal of Montana. |
1946 |
| original |
Middle Eocene |
|
Colorado |
Wodehouse,R.P. Tertiary pollen II. The oil shales of the Eocene Green River Formation |
1933 |
| original |
Middle Eocene |
|
Utah |
Wodehouse,R.P. Tertiary pollen II. The oil shales of the Eocene Green River Formation |
1933 |