| original |
Arenigian |
|
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |
| details |
Early Tremadocian |
|
Belgium |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
France |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
England |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Poland |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Late Cambrian |
|
China(Kirin) |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Llanvirnian |
Llandeilian |
Spain |
Fombella,M.A. et al. New palynological results from the Oville Formation at Southwest Vozmediano, Leon (northwestern Spain). (In: Commision Internationale De |
1996 |
| details |
Early Llanvirnian |
|
Belgium |
Servais,T. et al. Lower Llanvirn, (Ordovician), graptolites and acritarchs from the Assise de Huy Bande de Sambre-et-Meuse, Belgium. |
1993 |
| details |
Late Ordovician |
|
Estonia |
Paalits,I. Biostratigraphy: Acritarchs |
1990 |
| details |
Late Cambrian |
Late Ordovician |
Estonia |
Paalits,I. Biostratigraphy: Acritarchs |
1990 |
| details |
Ordovician |
|
Nd |
Servais,T. An annotated bibliographical review of Ordovician acritarchs |
1997 |
| details |
Early Tremadocian |
|
Spain |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Early Tremadocian |
|
Italy |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Late Tremadocian |
|
Iran |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Late Tremadocian |
|
Africa(N.Africa) |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |
| details |
Late Tremadocian |
|
Poland |
Volkova,N.A. Paleogeography of phytoplankton at Cambrian-Ordovician boundary |
1997 |