| original |
Dittonian |
|
England(Shropshire) |
Edwards,D. et al. Lower Devonian (Dittonian) plants from the Welsh Borderland. |
1974 |
| details |
Nd |
|
Nd |
Richardson,J.B. Paleozoic spores and pollen: Lower and Middle Palaeozoic record of terrestrial palynomorphs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Nd |
|
Nd |
Edwards,D. et al. Miscellaneous. 13F: Older plant macerals (excluding spores). (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Lochkovian |
|
Wales |
Edwards,D. et al. In situ, pollen and spores in plant evolution. 14A -Review of in situ, spores in early land plants. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |