| original |
Early Ordovician |
Late Ordovician |
Finland |
Tynni,R. On Paleozoic microfossils in clastic dykes on the …land Islands and in the core samples of Lumparn. (In: Paleozoic sediments in the Rapakivi area of the …land Islands. L. Bergman, R. Tynni and B. Winterhalter, editors.) |
1982 |
| details |
Silurian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Givetian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Arenigian |
|
France(Herault) |
Rauscher,R. Lower Paleozoic acritarchs from the Montagne Noire. |
1971 |
| details |
Arenigian |
|
China(Yunnan) |
Fang,X. Ordovician micropaleoflora in Kunming-Luquan Region, Yunnan Province, and its stratigraphical significance. |
1987 |
| details |
Tremadocian |
Ashgillian |
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. |
1974 |
| details |
Givetian |
|
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. |
1974 |
| details |
Late Ordovician |
|
Baltic |
VavrdovЎ,M. Geographical differentiation of Ordovician acritarch assemblages in Europe. |
1974 |
| details |
Late Ordovician |
|
USSR(Baltic) |
Eisenack,A. Contribution to acritarch research. |
1974 |
| details |
Quaternary |
|
Sweden |
Tralau,H. Micropalaeontological analysis of Ordovician Flint artifacts from a Stone Age settlement at Ire, Gotland. (In: Studies in North European Archaeology. G.O.Janzon, editor) |
1974 |
| details |
Llanvirnian |
|
E.Germany |
Burmann,G. The Ordovician of the northern Phyllite zone |
1973 |
| details |
Middle Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Silurian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Caradocian |
|
Sweden |
Jux,U. Fine-Structures in the walls of some Paleozoic Baltisphaerids. |
1971 |