| original |
Arenigian |
|
E.Germany(Rostock) |
Burmann,G. Further organic microfossils from the Lower Ordovician. |
1970 |
| details |
Arenigian |
Early Llanvirnian |
E.Germany(Rostock) |
Burmann,G. Further organic microfossils from the Lower Ordovician. |
1970 |
| details |
Late Arenigian |
|
E.Germany |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Early Llanvirnian |
|
E.Germany |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Llanvirnian |
|
Czechoslovakia |
VavrdovЎ,M. Acritarchs from the Sarka Formation (Llanvirnian). |
1977 |
| details |
Arenigian |
Llanvirnian |
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. 2: Index to Parts 1 and 2. |
1977 |
| details |
Arenigian |
|
Canada(Newfoundland) |
Dean,W.T. et al. Lower Ordovician acritarchs and Trilobites from Bell Island, Eastern Newfoundland. |
1978 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Early Arenigian |
|
Belgium |
Martin,F. et al. Ordovician and Silurian acritarchs, chitinozoans, and graptolites of the Sennette Valley (Brabant Massif, Belgium). |
1979 |
| details |
Late Arenigian |
Llanvirnian |
Belgium |
Martin,F. et al. Acritarchs, chitinozoans and graptolites of the Ordovician and Silurian of the Sennette Valley (Brabant Massive, Belgium) |
1979 |
| details |
Late Arenigian |
Llanvirnian |
Belgium |
Martin,F. et al. Acritarchs, chitinozoans and graptolites of the Ordovician and Silurian of the Sennette Valley (Brabant Massive, Belgium) |
1979 |
| details |
Late Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Phytoplankton communities of Cambrian and Ordovician age of Central Bohemia |
1982 |
| details |
Llanvirnian |
|
Czechoslovakia |
VavrdovЎ,M. New genera of acritarchs from the Bohemian Ordovician. |
1986 |
| details |
Late Arenigian |
|
Wales |
Molyneux,S.G. Appendix: Acritarchs and chitinozoa from the Arenig series of southwest Wales. (In: The Arenig Series in South Wales: Stratigraphy and palaeontology.) |
1987 |
| details |
Late Tremadocian |
Early Arenigian |
England(Lancashire) |
Molyneux,S.G. et al. The age of the Watch Hill Grits, (Ordovician), English Lake District; Structural and palaeogeographical implications. |
1988 |
| details |
Late Arenigian |
Early Llanvirnian |
E.Germany |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Arenigian |
Llanvirnian |
Germany(Saxony) |
Walter,H. et al. Paleozoic microfossils from the northern Margin of the Erzgebir Mountains, (Saxony). |
1998 |