| original |
Wenlockian |
|
England(Shropshire) |
Downie,C. Deunffia and Domasia, new genera of Hystrichospheres. |
1960 |
| details |
Gedinnian |
|
Spain |
Cramer,F.H. Some acritarchs from the San Pedro Formation (Gedinnien) of the Cantabric Mountains in Spain. |
1964 |
| original |
Ludlovian |
|
Spain |
Cramer,F.H. Microplankton from three Palaeozoic formations in the Province of Leon, northwest Spain. |
1964 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Silurian |
|
England |
Norris,G. et al. A descriptive index of genera of fossil Dinophyceae and acritarcha. |
1965 |
| details |
Late Ludlovian |
Early Gedinnian |
Spain |
Cramer,F.H. Palynology of Silurian and Devonian rocks in northwest Spain. |
1966 |
| 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 |
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 |
Tarannon |
Ludlovian |
Atlantic Ocean |
Cramer,F.H. Possible climate dependability of Silurian acritarchs. |
1969 |
| details |
Early Wenlockian |
|
England |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Nd |
|
Ohio |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Nd |
|
Indiana |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Nd |
|
Kentucky |
Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa |
1970 |
| details |
Middle Llandoverian |
Late Wenlockian |
North America |
Cramer,F.H. Middle Silurian continental movement estimated from phytoplankton-facies transgressions. |
1970 |
| details |
Middle Llandoverian |
Late Wenlockian |
Europe |
Cramer,F.H. Middle Silurian continental movement estimated from phytoplankton-facies transgressions. |
1970 |
| details |
Middle Llandoverian |
Late Wenlockian |
Africa |
Cramer,F.H. Middle Silurian continental movement estimated from phytoplankton-facies transgressions. |
1970 |
| details |
Silurian |
|
England |
Sheshegova,L.I. The acritarchs of the Paleozoic. |
1971 |