| details |
Silurian |
|
Belgium |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Frasnian |
|
Iran |
Hashemi,H. et al. Upper Devonian palynomorphs of the Shishtu Formation, Central I Basin, East-Central Iran |
1998 |
| details |
Strunian |
|
Turkey |
Higgs,K.T. et al. Late Devonian and early Carboniferous microfloras from the Hakkar Province of southeastern Turkey. |
2002 |