| details |
Late Telychian |
Early Gorstian |
Worldwide |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Llandoverian |
Wenlockian |
USSR(Ukrainian SSR) |
Kiryanov,V.V. Silurian acritarchs of Volhynia and Podolia |
1978 |
| details |
Late Llandoverian |
Ludlovian |
USSR(Krasnoyarsk Kray) |
Sheshegova,L.I. The acritarchs of the Silurian of the northern Siberian Platform |
1984 |
| original |
Silurian |
|
USA |
Cramer,F.H. et al. North American Silurian palynofacies and their spatial arrangement. |
1972 |
| details |
Wenlockian |
|
Sweden |
Cramer,F.H. et al. Acritarchs. (In: Lower Wenlock faunal and flora dynamics-Vattenfallet section, Gotland. V.Jaanusson, S.Laufeld and R.Skoglund, editors) |
1979 |
| details |
Early Wenlockian |
|
Sweden |
Le H©riss©,A. Organic walled microplankton from the Silurian of Gotland, (Sweden): Electron microscopical observations on excystment structures. |
1984 |
| details |
Late Llandoverian |
Early Sheinwoodian |
Sweden |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
| details |
Ludlovian |
Siedlce |
Poland |
Stempien,M. Ordovician and Silurian acritarchs of the Niestachow Sandstone Formation (Gory Swietokrzyskie Mountains) |
1990 |
| details |
Late Llandoverian |
|
Ohio |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Late Telychian |
|
Norway |
Smelror,M. Early Silurian acritarchs and Prasinophycean algae from the Ringerike Districkt, Oslo Region (Norway). |
1987 |
| details |
Late Llandoverian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Llandoverian |
|
Lithuania |
Yankauskas,T.V. et al. Upper Llandoverian and Lower Wenlockian acritarch assemblages from the Ledai-179 boring in Lithuania. |
2004 |
| details |
Llandoverian |
Wenlockian |
England(Shropshire) |
Dorning,K.J. Silurian acritarchs from the type Wenlock and Ludlow of Shropshire, England. |
1981 |
| details |
Middle Sheinwoodian |
Early Homerian |
England(Northumberland) |
Barron,H.F. Mid-Wenlock acritarchs from a Silurian Inlier in the Cheviot Hills, northeast England. |
1989 |
| details |
Llandoverian |
|
Belgium |
Martin,F. et al. Ordovician and Silurian acritarchs, chitinozoans, and graptolites of the Sennette Valley (Brabant Massif, Belgium). |
1979 |
| details |
Late Llandoverian |
|
Belgium |
Martin,F. et al. Acritarchs, chitinozoans and graptolites of the Ordovician and Silurian of the Sennette Valley (Brabant Massive, Belgium) |
1979 |
| details |
Early Ludlovian |
|
Argentina(San Juan) |
Pжthe de Baldis,E.D. Paleomicroplankton and miospores of the Lower Ludlovian of the Los Espejos Formation in the cross section of Los Azuleitos, San Juan Province, Argentina. |
1981 |