| original |
Late Oligocene |
|
Vermont |
Traverse,A. Pollen analysis of the Brandon Lignite of Vermont. |
1955 |
| details |
Middle Eocene |
Miocene |
Canada(NWT,Mackenzie) |
Norris,G. Systematic and stratigraphic palynology of the Eocene to Pliocene strata in the Imperial Nuktak C-22 Well, MacKenzie Delta Region, District of MacKenzie, NWT. |
1986 |
| details |
Late Oligocene |
|
Vermont |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| details |
Late Oligocene |
|
Vermont |
Norris,G. Systematic and stratigraphic palynology of the Eocene to Pliocene strata in the Imperial Nuktak C-22 Well, MacKenzie Delta Region, District of MacKenzie, NWT. |
1986 |