| details |
Early Triassic |
Middle Triassic |
USSR(Urals) |
Tuzhikova,V.I. Triassic acritarchs of the Urals |
1971 |
| details |
Siegenian |
Late Devonian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Siegenian |
Late Devonian |
France |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Siegenian |
Late Devonian |
Brazil |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Emsian |
Late Devonian |
Europe |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Emsian |
Late Devonian |
Canada |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Late Gothlandian |
Late Devonian |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Precambriam |
Holocene |
Nd |
Guy-Ohlson,D. Green and Blue-Green algae. 7B-Prasinophycean algae. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Llandoverian |
Frasnian |
Brazil(Amazonas) |
Lange,F.W. Biostratigraphic subdivisions and revision of the Silurian-Devonian column of the Lower Amazon Basin. |
1967 |
| details |
Emsian |
Eifelian |
USA(Eastern) |
Dennison,J.M. Faces relations of Hystrichosphaeres in Onesquethaw Stage (Devonian) of Central Appalachians |
1966 |
| details |
Middle Ordovician |
Early Gothlandian |
USSR(Yaroslav) |
Aristova,K.E. et al. Upper Ordovician and Silurian of the Moscow Syneclise |
1977 |
| details |
Late Devonian |
Early Carboniferous |
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1984 |
| details |
Vendian |
Early Cambrian |
USSR(Siberia) |
Rudavskaya,V.A. Microstructures of the Orgueil Meteorite similar to microforms from the Lower Paleozoic of eastern Siberia |
1972 |
| details |
Silurian |
Devonian |
Nd |
Downie,C. The geological history of the microplankton. |
1967 |
| details |
Middle Cambrian |
Arenigian |
Zambia |
VavrdovЎ,M. et al. Lower Palaeozoic microfossils from the Luapula Beds of Mansa area |
1972 |
| details |
Middle Devonian |
|
France(Cotes du Nord) |
Lefort,J.P. et al. A study of the Pre-Mesozoic basement samples of the northern part of the Channel Islands Gulf. |
1974 |
| details |
Nd |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |