original |
Middle Siegenian |
Early Emsian |
W.Germany(Rhineland) |
Volkmer,U. Spore stratigraphy of the Lower Devonian, (Siegenian - Emsian) within the Southern Bergisches Land (Rhenish Massif). |
1985 |
original |
Asselian |
Sakmarian |
Australia(S.Australia) |
Gilby,A.R. et al. Early Permian palynology of the Arckaringa Basin, South Australia |
1988 |
original |
Famennian |
|
China(Tibet) |
Lu,L.-C. et al. Upper Devonian acritarchs and spores from the Hongguleleng Formation, Hefeng District in Xinjiang, China. |
1988 |
original |
Emsian |
Eifelian |
Georgia |
Ravn,R.L. et al. Devonian miospores and reworked acritarchs from southeastern Georgia, USA. |
1988 |
original |
Late Siegenian |
|
W.Germany(N.Rhine) |
Volkmer,U. Palynology of the Odenspiel Beds at the Siegenian type Region (Bergisches Land/ Siegerland) of the Lower Devonian |
1988 |
original |
Tournaisian |
Visean |
Africa(Sahara) |
Coquel,R. et al. On some Uppermost Devonian-Lower Carboniferous Trilete Camerate spores from North Africa |
1989 |
original |
Strunian |
Early Tournaisian |
China(Zeijing) |
He,S.-C. et al. Spore assemblages from Devonian-Carboniferous transitional beds of Hsihu Formation, Fuyang, Western Zhejiang. |
1993 |