| details |
Early Piacenzian |
|
USSR(Georgian SSR) |
Schatilova,I.I. The history of development of the Late Pliocene vegetation of Western Georgia |
1984 |
| details |
Early Oligocene |
|
Australia(Tasmania) |
Jordan,G.J. et al. A fertile Pinnule fragment with spores of Dicksonia from Early Oligocene sediments in Tasmania |
1996 |
| details |
Middle Miocene |
Egrissian |
Georgian |
Shatilova,I.I. et al. The genus Pteris L. in the Neogene deposits of Western Georgia |
1996 |
| details |
Cenomanian |
|
Nd |
Pryer,K.M. Phylogeny of Marsileaceous ferns and relationships of the fossil Hydropteris pinnata reconsidered. |
1999 |
| details |
Albian |
|
Australia(Queensland) |
Macphail,M.K. Lower Balonne Airborne Geophysical Project. Palynostratigraphic analysis of core and cuttings samples from the Lower Balonne Area, Southern Queensland, Australia. |
2004 |