| original |
Late Llanvirnian |
|
E.Germany(Rostock) |
Burmann,G. Further organic microfossils from the Lower Ordovician. |
1970 |
| details |
Llanvirnian |
|
E.Germany(Rostock) |
Servais,T. The Ordovician acritarchs from Rugen, (Northeast Germany), palaeobiogeographical evidence for the attribution to eastern Avalonia. |
1994 |
| details |
Nd |
|
Nd |
Fatka,O. et al. The Ordovician acritarch Frankea: Some critical remarks. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Arenigian |
Llanvirnian |
Germany(Saxony) |
Walter,H. et al. Paleozoic microfossils from the northern Margin of the Erzgebir Mountains, (Saxony). |
1998 |
| details |
Ordovician |
|
Nd |
Servais,T. Some considerations on acritarch classification |
1996 |
| details |
Llanvirnian |
|
Tunisia |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |
| details |
Llanvirnian |
|
Algeria |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |
| details |
Llanvirnian |
|
Tunisia |
Vecoli,M. et al. The Ordovician acritarchs Frankea breviuscula, Frankea longiuscula, and Frankea sartbernardensis: A new study. |
1999 |
| details |
Early Llanvirnian |
|
Spain |
Vecoli,M. et al. The Ordovician acritarchs Frankea breviuscula, Frankea longiuscula, and Frankea sartbernardensis: A new study. |
1999 |
| details |
Early Llanvirnian |
|
Belgium |
Vecoli,M. et al. The Ordovician acritarchs Frankea breviuscula, Frankea longiuscula, and Frankea sartbernardensis: A new study. |
1999 |
| details |
Early Llanvirnian |
|
Spain |
Tongiorgi,M. et al. Differentiation and spread of the Baltic Acritarch Province (Arenig-Llanvirn). |
1999 |
| details |
Llanvirnian |
|
Saudi Arabia |
Strother,P.K. et al. New evidence for land plants from the Lower Middle Ordovician of Saudi Arabia |
1996 |
| details |
Caradocian |
|
England(Shropshire) |
Turner,R.E. Reworked acritarchs from the type section of the Ordovician Caradoc series. Shropshire. |
1982 |
| details |
Late Llanvirnian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Llanvirnian |
|
United Kingdom |
Downie,C. Acritarchs in British stratigraphy |
1984 |
| details |
Llanvirnian |
|
Syria |
Yankauskas,T.V. et al. The Paleozoic of Syria-Arabian Republic |
1978 |
| details |
Llandeilian |
|
Wales |
Trythall,R.J.B. et al. Age and controls of Ironstone deposition (Ordovician) North Wales. |
1987 |