| details |
Late Cambrian |
Tremadocian |
USSR(Estonian SSR) |
Volkova,N.A. Acritarchs from the Upper Pakeroritskogo horizon from northern Estonia and Leningrad Oblast. (In: Paleoflora and Stratigraphy of the Phanerozoic. M.A.Akhmetev, editor) |
1989 |
| details |
Tremadocian |
|
USSR(Estonian SSR) |
Volkova,N.A. Phytoplankton and acritarch research of Cambrian-Ordovician deposits of the Baltic Region |
1995 |
| details |
Early Tremadocian |
|
USSR(Arkhangelsk Oblast) |
Volkova,N.A. Phytoplankton and acritarch research of Cambrian-Ordovician deposits of the Baltic Region |
1995 |
| details |
Late Tremadocian |
|
Estonia |
Volkova,N.A. Acritarchs from the Cambrian - Ordovician Boundary Beds, (Boring Core M-56), of the Estonian, near Clint Area. |
1993 |
| details |
Late Tremadocian |
Early Arenigian |
Argentina(Salta) |
Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) |
2002 |
| details |
Late Tremadocian |
|
Belgium |
Vanguestaine,M. et al. Early Ordovician acritarchs of the Lierneux Member (Stavelot Inlier, Belgium): Stratigraphy and palaeobiogeography. |
2002 |
| details |
Late Tremadocian |
Early Arenigian |
S.Ireland(Kerry) |
Todd,S.P. et al. An Early Ordovician age for the Annascaul Formation of the southeast Dingle Peninsula southwest Ireland. |
2000 |
| details |
Early Tremadocian |
Middle Arenigian |
S.Ireland(Kerry) |
Todd,S.P. et al. An Early Ordovician age for the Annascaul Formation of the southeast Dingle Peninsula southwest Ireland. |
2000 |
| details |
Late Cambrian |
Early Ordovician |
Algeria |
Stricanne,L. et al. A statistical approach to classification of the Cambro-Ordovician galeate acritarch plexus |
2002 |
| details |
Llanvirnian |
Llandeilian |
E.Germany(Rostock) |
Servais,T. et al. Acritarch dating of Ordovician sediments of the Island of Rugen (NE.Germany). |
1993 |
| details |
Late Tremadocian |
Early Arenigian |
E.Germany(Rostock) |
Servais,T. et al. A discussion and proposals concerning the Lower Paleozoic "Galeate" acritarch Plexus |
1995 |
| details |
Late Tremadocian |
Early Arenigian |
E.Germany(Rostock) |
Servais,T. et al. A discussion and proposals concerning the Lower Paleozoic "Galeate" acritarch Plexus |
1995 |
| details |
Late Tremadocian |
Early Arenigian |
E.Germany(Rostock) |
Servais,T. The Ordovician acritarchs from Rugen, (Northeast Germany), palaeobiogeographical evidence for the attribution to eastern Avalonia. |
1994 |
| details |
Late Tremadocian |
|
Germany(Rostock) |
Servais,T. et al. The "messaoudensis-trifidum" acritarch assemblage (Ordovician: Tremadoc-Early Arenigian) from the subsurface of Rugen (Baltic Sea, northeast Germany). |
1997 |
| original |
Late Tremadocian |
|
Germany(Rostock) |
Servais,T. et al. The "messaoudensis-trifidum" acritarch assemblage (Ordovician: Tremadoc-Early Arenigian) from the subsurface of Rugen (Baltic Sea, northeast Germany). |
1997 |
| details |
Nd |
|
Nd |
Servais,T. et al. The "messaoudensis-trifidum" acritarch assemblage (Ordovician: Tremadoc-Early Arenigian) from the subsurface of Rugen (Baltic Sea, northeast Germany). |
1997 |
| details |
Late Tremadocian |
Early Arenigian |
Spain |
Servais,T. et al. The messaoudensis-trifidum acritarch assemblage (Ordovician: Late Tremadoc - Early Arenig) of the Barriga Shale Formation, Sierra Morena (southwest Spain). |
2000 |