| details |
Ashgillian |
Rhuddanian |
Nd |
Richardson,J.B. et al. Sporomorphs and plant megafossils. (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
| details |
Late Aeronian |
Early Telychian |
Libya |
Richardson,J.B. Late Ordovician and Early Silurian cryptospores and miospores from northeast Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
| details |
Hirnantian |
Early Rhuddanian |
Wales(Dyfed) |
Burgess,N.D. Silurian Cryptospores and miospores from the type Llandovery area, southwest Wales. |
1991 |
| details |
Llandoverian |
|
Pennsylvania |
Strother,P.K. A classification Schema for the Cryptospores |
1991 |
| original |
Llandoverian |
|
Pennsylvania |
Johnson,N.G. Early Silurian palynomorphs from the Tuscarora Formation in Central Pennsylvania and their paleobotanical and geological significance |
1985 |
| details |
Rhuddanian |
|
Libya |
Richardson,J.B. Late Ordovician and Early Silurian cryptospores and miospores from northeast Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
| details |
Llandoverian |
|
Pennsylvania |
Gensel,P.G. et al. Early land plant debris (Hooker's "Waifs and Stray"?) |
1990 |
| details |
Llandoverian |
|
Pennsylvania |
Burgess,N.D. Silurian Cryptospores and miospores from the type Llandovery area, southwest Wales. |
1991 |
| details |
Rhuddanian |
|
Saudi Arabia |
Steemans,P. et al. Cryptospores and trilete spores from the Llandovery, Nuayyim-2 Borehole, Saudi Arabia. |
2000 |
| details |
Nd |
|
Nd |
Steemans,P. et al. Cryptospores and trilete spores from the Llandovery, Nuayyim-2 Borehole, Saudi Arabia. |
2000 |