| original |
Llandoverian |
|
Pennsylvania |
Strother,P.K. et al. Plant microfossils from Llanderovian and Wenlockian rocks of Pennsylvania. |
1979 |
| details |
Llandoverian |
|
New York |
Miller,M.A. et al. Palynomorphs from the Silurian Medina Group, (Lower Llandovery), of the Niagara Gorge, Lewiston, New York, USA. |
1982 |
| details |
Llandoverian |
|
Pennsylvania |
Johnson,N.G. Early Silurian palynomorphs from the Tuscarora Formation in Central Pennsylvania and their paleobotanical and geological significance |
1985 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Further acritarchs and terrestrial plant remains from the Late Orovician at Hlasna Treban (Czechoslovakia) |
1988 |
| details |
Rhuddanian |
Early Aeronian |
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 |
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 |
Ashgillian |
Early Llandoverian |
Czechoslovakia |
VavrdovЎ,M. New acritarchs and miospores from the Late Ordovician of Hlasna Treban, Czechoslovakia. |
1989 |
| 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 |
Llandoverian |
|
Pennsylvania |
Strother,P.K. A classification Schema for the Cryptospores |
1991 |
| details |
Ashgillian |
|
Turkey |
Steemans,P. et al. Ordovician and Silurian cryptospores and miospores from southeastern Turkey. |
1996 |
| details |
Llandoverian |
|
Pennsylvania |
Steemans,P. et al. Ordovician and Silurian cryptospores and miospores from southeastern Turkey. |
1996 |
| details |
Ashgillian |
|
Belgium |
Steemans,P. Ordovician cryptospores from the Oostduinkerke Borehole, Brabant Massif, Belgium. |
2001 |