| original |
Late Frasnian |
|
Iowa |
Wicander,R. et al. Acritarchs and spores from the Upper Devonian Lime Creek Formation, Iowa, USA. |
1985 |
| details |
Middle Givetian |
Early Frasnian |
Australia(W.Australia) |
Colbath,G.K. Devonian, (Givetian-Frasnian) organic-walled phytoplankton from the Limestone Billy Hills, Reef complex, Canning Basin, Western Australia. |
1990 |
| details |
Frasnian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
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 |