| details |
Late Llandoverian |
Early Wenlockian |
Indiana |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Late Llandoverian |
Early Wenlockian |
Kentucky |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |
| details |
Late Gothlandian |
Devonian |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Late Gedinnian |
|
Oklahoma |
Loeblich,A.R.,Jr. et al. Organic-walled microplankton from the Lower Devonian, Late Gedinnian Haragan and Bois d'Arc Formations of Oklahoma, USA. Part 1. |
1976 |
| details |
Late Devonian |
Early Carboniferous |
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1984 |
| original |
Late Devonian |
|
Canada(Alberta) |
Staplin,F.L. Reef-Controled distribution of Devonian microplankton in Alberta. |
1961 |
| details |
Homerian |
|
England(Shropshire) |
Dorning,K.J. et al. The Silurian carbonate shelf microflora- acritarch distribution in the Much Wenlock Limestone Formation. (In: Micropalaeontology of Carbonate Environments. M.B.Hart, editor) |
1987 |
| details |
Homerian |
|
Wales(Montgomeryshire) |
Dorning,K.J. et al. The Silurian carbonate shelf microflora- acritarch distribution in the Much Wenlock Limestone Formation. (In: Micropalaeontology of Carbonate Environments. M.B.Hart, editor) |
1987 |
| details |
Gorstian |
Ludfordian |
Wales(Brecknockshire) |
Dorning,K.J. Silurian acritarch distribution in the Ludlovian shelf Sea of South Wales and Welsh Borderland. (In: Microfossils from Recent and Fossil Shelf Seas. J.W.Neale and M.D. Brasier. editors) |
1981 |
| details |
Gorstian |
Ludfordian |
Wales(Carmarthenshire) |
Dorning,K.J. Silurian acritarch distribution in the Ludlovian shelf Sea of South Wales and Welsh Borderland. (In: Microfossils from Recent and Fossil Shelf Seas. J.W.Neale and M.D. Brasier. editors) |
1981 |
| details |
Givetian |
|
Iowa |
Wicander,R. et al. Acritarchs, spores and chitinozoans from the Middle Devonian, (Givetian), Rapid Member of the Cedar Valley Formation, Iowa, U.S. |
1984 |
| details |
Gedinnian |
|
France(Manche) |
Poncet,J. et al. New stratigraphic data on the Comprehensive Series (D1-S4), of Cotentin. |
1971 |
| details |
Gedinnian |
|
Tennessee |
Wood,G.D. et al. Early Devonian, (Gedinnian), organic-walled microphytoplankton and spores from the Ross Formation of Tennessee, United States. |
1985 |
| details |
Emsian |
Givetian |
Brazil |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Eifelian |
Late Devonian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Early Ludlovian |
|
Sweden |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
| details |
Early Gothlandian |
|
Indiana |
Wood,G.D. Biostratigraphic and paleoecologic significance of acritarchs from the Waldron Formation, (Lower Silurian), midcontinent, United States |
1984 |