| details |
Llanvirnian |
|
E.Germany |
Burmann,G. The Ordovician of the northern Phyllite zone |
1973 |
| details |
Late Llanvirnian |
Early Ludlovian |
Morocco |
Cramer,F.H. et al. Early Ordovician acritarchs from the Tadla Basin of Morocco. |
1974 |
| details |
Late Cambrian |
|
USSR(Leningrad) |
Borovko,N.G. et al. The reference section of Cambrian and Ordovician boundry sediments at North-West Russian Plate (Izhora River) |
1984 |
| original |
Late Cambrian |
|
USSR(Leningrad) |
Borovko,N.G. et al. The reference section of Cambrian and Ordovician boundry sediments at North-West Russian Plate (Izhora River) |
1984 |
| details |
Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian-Ordovician boundary sediments of northern Estonia |
1989 |
| details |
Late Cambrian |
Early Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs of the Desposits of the Cambrian-Ordovician boundary northern Estonia |
1989 |
| details |
Early Tournaisian |
|
Libya |
VavrdovЎ,M. Latest Devonian miospores and acritarchs from the subsurface samples of the Ashkidah Formation. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| details |
Arenigian |
|
China(Szechwan) |
Brocke,R. Evaulation of the Ordovician acritarch genus Ampullula Righi |
1997 |
| details |
Tremadocian |
|
Saudi Arabia |
Molyneux,S.G. et al. Palynology of a problematic lower Palaeozoic lithofacies in the central Arabian Basin, Saudi Arabia. |
2000 |
| details |
Arenigian |
|
Pakistan |
Quintavalle,M. et al. Lower to Middle Ordovician acritarchs and chitinozoans from northern Karakorum Mountains, Pakistan. |
2000 |
| details |
Tremadocian |
|
Germany(Baden) |
Montenari,M. et al. Early Paleozoic (Late Cambrian - Early Ordovician) acritarchs from the metasedimentary Baden-Baden-Gaggenau zone (Schwarzwald, southwest Germany). |
2000 |