| original |
Wenlockian |
|
England(Shropshire) |
Downie,C. Deunffia and Domasia, new genera of Hystrichospheres. |
1960 |
| details |
Wenlockian |
|
England(Shropshire) |
Downie,C. 'Hystrichosheres', (acritarchs), and spores of the Wenlock Shales, (Silurian), of Wenlock, England. |
1963 |
| details |
Paleozoic |
|
Nd |
Sarjeant,W.A.S. Fossil algae and modern rock-dating. |
1963 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Wenlockian |
|
England |
Brito,I.M. The acritarchs |
1967 |
| details |
Middle Gothlandian |
Late Gothlandian |
Spain |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Wenlockian |
|
Ohio |
Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. |
1968 |
| details |
Late Llandoverian |
Early Ludlovian |
Atlantic Ocean |
Cramer,F.H. Silurian phytoplankton Provinces |
1968 |
| details |
Early Gothlandian |
Middle Gothlandian |
Ohio |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Early Gothlandian |
Middle Gothlandian |
Indiana |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Early Gothlandian |
Middle Gothlandian |
Illinois |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Middle Gothlandian |
|
Canada(Ontario) |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Middle Gothlandian |
Late Gothlandian |
Canada(Ontario) |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Middle Gothlandian |
|
Wales |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Silurian |
|
Belgium |
Cramer,F.H. Silurian palynologic microfossils and paleolatitudes. |
1968 |
| details |
Middle Gothlandian |
|
Ohio |
Cramer,F.H. Consideration on the palynology and Silurian paleolatitudes based on microplankton of the Cantabrian Mountains of the Northwest of Spain. |
1969 |
| details |
Early Gothlandian |
|
Canada(Ontario) |
Cramer,F.H. Consideration on the palynology and Silurian paleolatitudes based on microplankton of the Cantabrian Mountains of the Northwest of Spain. |
1969 |