| details |
Early Ordovician |
|
Finland |
Tynni,R. On Paleozoic microfossils in clastic dykes on the …land Islands and in the core samples of Lumparn. (In: Paleozoic sediments in the Rapakivi area of the …land Islands. L. Bergman, R. Tynni and B. Winterhalter, editors.) |
1982 |
| details |
Tremadocian |
|
Spain |
Kedves,M. Report on the IV. A.P.L.E.Palynology Symposium (Barcelona, October 7-9,1982) |
1983 |
| details |
Late Ordovician |
|
Czechoslovakia |
VavrdovЎ,M. Some plant microfossils of possible terrestrial origin from the Ordovician of Central Bohemia. |
1984 |
| original |
Cambrian |
Tremadocian |
Italy |
Kalvacheva,R.K. et al. Acritarch evidence for the Cambrian age of Phyllites in the Agordo area (South-Alpine Basement of eastern Alps, Italy). |
1986 |
| details |
Middle Cambrian |
|
USSR(Kalinin) |
Nikashin,A. et al. New data on the Cambrian stratigraphy of the southwestern part of the Baltic Syneclise, (Kaliningrad District). (In: Vendian and Cambrian Facies and Stratigraphy of the Western Part of East European Platform. E.A.Pirrus, editor) |
1986 |
| details |
Early Cambrian |
|
Sweden |
Eklund,C. Lower Cambrian acritarch stratigraphy of the Barstad 2 core, Ostergotland, Sweden. |
1990 |
| details |
Ashgillian |
|
China(Zeijing) |
He,S.-C. et al. Late Ordovician acritarchs from changwu Formation of Jiangshan, Zhejiag, China |
1993 |
| details |
Early Cambrian |
Middle Cambrian |
Canada(Quebec) |
Lavoie,D. et al. Stratigraphic framework for the Cambrian-Ordovician rift and passive margin successions from southern Quebec to western Newfoundland. |
2003 |