| details |
Late Llandoverian |
Wenlockian |
Kentucky |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Late Llandoverian |
Wenlockian |
Ohio |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Llandoverian |
Wenlockian |
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. 2: Index to Parts 1 and 2. |
1977 |
| details |
Ordovician |
Silurian |
India(Karnataka) |
Venkatachalapathy,V. et al. Occurrence of acritarchs in Halakurki Argillites of Badami Group, South India and their significance. |
1984 |
| details |
Ordovician |
Silurian |
USSR(Russian Platform) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Gedinnian |
Siegenian |
Africa(Sahara) |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Middle Telychian |
Late Telychian |
Norway |
Smelror,M. Early Silurian acritarchs and Prasinophycean algae from the Ringerike Districkt, Oslo Region (Norway). |
1987 |
| details |
Late Llandoverian |
Early Wenlockian |
Turkey |
Miller,M.A. et al. Early Silurian acritarchs and prasinophytes from the subsurface of southeastern Turkey. |
1998 |
| 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 Ordovician |
Early Gothlandian |
India(Karnataka) |
Viswanathiah,M.N. et al. Acritarchs and associated microplankton from the Katageri Formation of the Badami Group, South India. |
1984 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Early Gothlandian |
|
Norway |
Dorning,K.J. et al. A preliminary investigation of palynological assemblages from the Early Silurian of Ringerike. |
1982 |
| details |
Early Wenlockian |
|
Scotland(Ayr) |
Dorning,K.J. Early Wenlockian acritarchs from the Knockgardner and Straiton Grit Formations of Knockgardner, Ayrshire. |
1982 |
| 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 |
Early Riphean |
|
India(Karnataka) |
Viswanathiah,M.N. et al. Microfossils from the Salagundi Conglomerate of Bagalkot Formation, Kaladgi Group, South India. |
1984 |
| details |
Early Ludlovian |
|
New York |
Miller,M.A. et al. Ludlow age acritarchs and spores from the Pittsford Shale, New York. |
1988 |
| details |
Precambriam |
|
India(Andhra Pradesh) |
Viswanathiah,M.N. et al. Microfossils from the Gandikota Quartzites of the Chatravati Group, Cuddapah Supergroup, Andhra Pradesh |
1984 |