| details |
Middle Ordovician |
|
USSR(Yaroslav) |
Umnova,N.I. et al. Acritarchs from the Yaroslavskoi series of the northern part of the Russian Platform |
1970 |
| details |
Devonian |
|
USSR(Urals) |
Medvedeva,A.M. Palynological investigation of Petroleum |
1978 |
| details |
Devonian |
|
USSR(Urals) |
Kulkova,I.A. The Eocene climatic optimum of northern Asia. (In: Climates of the Earth in the Geological Past. A.A.Velichko and A.L.Chepalyga, editors) |
1987 |
| details |
Ordovician |
Silurian |
USSR(Russian Platform) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Early Gothlandian |
|
USA |
Cramer,F.H. et al. North American Silurian palynofacies and their spatial arrangement. |
1972 |
| details |
Late Llandoverian |
Early Wenlockian |
Turkey |
Miller,M.A. et al. Early Silurian acritarchs and prasinophytes from the subsurface of southeastern Turkey. |
1998 |
| details |
Early Wenlockian |
|
Sweden |
Le H©riss©,A. Organic walled microplankton from the Silurian of Gotland, (Sweden): Electron microscopical observations on excystment structures. |
1984 |
| original |
Late Llandoverian |
|
Sweden |
Staplin,F.L. et al. Evaluation of some acritarchous Hystrichosphere genera. |
1965 |
| details |
Late Llandoverian |
Early Ludfordian |
Sweden |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
| details |
Late Llandoverian |
|
Sweden |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Early Wenlockian |
|
Scotland(Ayr) |
Dorning,K.J. Early Wenlockian acritarchs from the Knockgardner and Straiton Grit Formations of Knockgardner, Ayrshire. |
1982 |
| details |
Late Llandoverian |
Wenlockian |
Ohio |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Early Gothlandian |
|
Norway |
Dorning,K.J. et al. A preliminary investigation of palynological assemblages from the Early Silurian of Ringerike. |
1982 |
| details |
Middle Telychian |
Late Telychian |
Norway |
Smelror,M. Early Silurian acritarchs and Prasinophycean algae from the Ringerike Districkt, Oslo Region (Norway). |
1987 |
| details |
Early Ludlovian |
|
New York |
Miller,M.A. et al. Ludlow age acritarchs and spores from the Pittsford Shale, New York. |
1988 |
| details |
Middle Gothlandian |
|
Netherlands |
Sheshegova,L.I. The acritarchs of the Paleozoic. |
1971 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |