| details |
Early Miocene |
|
Vermont |
Traverse,A. Palynofloral geochronology of the Brandon Lignite of Vermont, USA. |
1994 |
| details |
Late Oligocene |
|
Vermont |
Traverse,A. Palynofloral geochronology of the Brandon Lignite of Vermont, USA. |
1994 |
| details |
Late Piacenzian |
|
USSR(Georgian SSR) |
Schatilova,I.I. The history of development of the Late Pliocene vegetation of Western Georgia |
1984 |
| details |
Late Oligocene |
|
Vermont |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| original |
Late Oligocene |
|
Vermont |
Traverse,A. Pollen analysis of the Brandon Lignite of Vermont. |
1955 |