| original |
Wenlockian |
Dittonian |
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| original |
Late Wenlockian |
Downtonian |
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| original |
Late Wenlockian |
Downtonian |
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| details |
Pridolian |
|
Wales |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
Gedinnian |
Wales |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
Gedinnian |
Wales |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
|
Scotland |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
Gedinnian |
Scotland |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
Gedinnian |
Scotland |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Gedinnian |
|
Canada(Ontario) |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
|
Libya |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Ludlovian |
|
Indiana |
Wood,G.D. et al. Silurian, (Ludlovian), Plant Megafossils and Trilete spores from northern Indiana and their bearing on Early land plant evolution |
1977 |
| details |
Gedinnian |
|
Canada(Ontario) |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Pridolian |
|
Libya |
Gray,J. Spores of Land-Plant type. |
1977 |
| details |
Late Homerian |
Early Gorstian |
Libya |
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 |
Aeronian |
Gedinnian |
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 |
Early Downtonian |
|
England(Herefordshire) |
Fanning,U. et al. A review of in situ, spores in Silurian land plants. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |