| details |
Late Llandoverian |
Wenlockian |
Belgium |
Le H©riss©,A. Biogeography of upper Llandovery and Wenlock acritarchs. |
1995 |
| details |
Late Gothlandian |
|
USSR(Siberia) |
Timofeev,B.V. Ordovician and Silurian phytoplankton of the Siberian Platform. |
1963 |
| details |
Late Cretaceous |
|
Hungary |
Kedves,M. et al. LM and TEM investigations on the Upper Cretaceous Ajkaite of Hungary 1. |
2000 |
| details |
Late Cambrian |
|
Romania |
Solomon,I. et al. Considerations on the crystalline and anchimetamorphic formations from the Vilcan and Retezat Mountains (South Carpathians) |
1976 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Eisenack,A. On Hystrichospheres and other microffossils of the Baltic Silurian and Cambrian |
1951 |
| details |
Late Cambrian |
|
USSR(Nenets Nat.Okrug) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Cambrian |
|
USSR(Irkutskaya Oblast) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| details |
Late Cambrian |
|
Canada(Manitoba) |
Obermajer,M. et al. Application of acritarch fluorescence in thermal maturity study. |
1999 |
| details |
Late Arenigian |
Llanvirnian |
Australia(W.Australia) |
Hoffmann,C.F. et al. Hydrocarbon biomarkers from Ordovician sediments and fossil alga Gloeocapsomorpha prisca, Zalessky,1917 |
1987 |
| details |
Frasnian |
|
Canada(Alberta) |
Chow,N. et al. Productivity Versus preservation controls on two organic-rich Carbonate facies in the Devonian of Alberta: sedimentological and organic petrological evidence |
1995 |
| details |
Eocene |
|
Texas |
Teerman,S.C. et al. Source rock/dispersed organic matter characterization-TSOP Research Subcommittee results. |
1994 |
| details |
Eifelian |
Frasnian |
Canada(Alberta) |
Stasiuk,L.D. Microscopic studies of sedimentary organic matter: key to understanding organic-rich strata, with Paleozoic examples from Western Canada Basin |
1999 |
| original |
Early Silurian |
|
USSR(Moscow Basin) |
Zalessky,M.D. On marine sapropelite of Silurian age, formed by blue-green alga. |
1917 |
| details |
Early Riphean |
Middle Riphean |
Morocco |
Timofeev,B.V. et al. Acritarchs of the Precambrian in Mobile Zones. |
1980 |
| details |
Early Proterozoic |
|
USSR(Siberia) |
Mikhailova,N.S. Microphytofossils of the Udokanskoi and Bodaibinskoi Series. (In: Paleontology of the Precambrian and Early Cambrian.) |
1979 |
| details |
Early Proterozoic |
Middle Proterozoic |
USSR(Pre-Urals) |
Timofeev,B.V. Microphytofossils of the Precambrian and Cambrian of northern Eurasia. (In: Paleontology of the Precambrian and Early Cambrian.) |
1979 |
| details |
Early Ordovician |
|
USSR(Russian Platform) |
Lutkevich,E.M. et al. Ordovician System. (In: Stratigraphy and Paleogeography of the Sinian, Paleozoic and Triassic of the Western Russian Platform. E.M.Lutkevich and A.K.Krilova, editor) |
1973 |