| details |
Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Eisenack,A. The Construction of the walls of the dinoflagellates. |
1939 |
| details |
Nd |
|
Nd |
Wicander,E.R. Upper Devonian-Lower Mississippian acritarchs and Prasinophycean algae from Ohio, USA. |
1974 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Middle Ordovician |
|
USSR(Yaroslav) |
Zharkova,M.F. et al. Age of the Yaroslavl' Series in the Lyubim District |
1967 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Middle Ordovician microplankton from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Middle Ordovician |
|
USSR(Estonian SSR) |
Bockelie,T.G. et al. Middle Ordovician acritarchs from the Island of Odinsholm, Estonia. |
1979 |
| details |
Middle Gothlandian |
|
New York |
Fisher,D.W. A microflora in the Maplewood and Neahga Shales. |
1954 |
| details |
Middle Emsian |
|
England(Oxfordshire) |
Richardson,J.B. et al. Palynomorphs in Lower Devonian sediments from the Apley Barn borehole, Southern England. |
1978 |
| original |
Middle Clintonian |
Late Clintonian |
New York |
Fisher,J.C. The Hystrichosphaerids in the Clinton Group, (Silurian), of New York State. |
1955 |
| details |
Late Triassic |
|
China(Qinghai) |
Ji,L.-X. The micropaleoflora features from Middle Carbonate Rock Formation of Jiezha Group in South Qinghai. |
1990 |
| details |
Late Ordovician |
|
Wales |
Lewis,H.P. The microfossils of the Upper Caradocian Phosphate deposits of Montgomeryshire, North Wales |
1940 |
| details |
Late Llandoverian |
Early Wenlockian |
Belgium |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Late Devonian |
|
Missouri |
Gupta,S. Palynology of Grassy Creek and Saverton Shales of Missouri. |
1965 |
| details |
Late Devonian |
Early Mississippian |
Ohio |
Winslow,M.R. Plant spores and other microfossils from Upper Devonian and Lower Mississippian rocks of Ohio |
1962 |