| details |
Wenlockian |
|
Wales(Gwynedd) |
Jeppson,L. et al. Wenlock (Silurian) oceanic episodes and events. |
1995 |
| details |
Late Aeronian |
Early Gorstian |
Worldwide |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Silurian |
|
Sweden(Gotland) |
Strother,P.K. Acritarchs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Aeronian |
Early Telychian |
Argentina(San Juan) |
Rubinstein,C.V. et al. A palynomorph and graptolite biostratigraphy of the Central Precordillera Silurian Basin, Argentina. |
1999 |