| details |
Arenigian |
Ordovician |
Saudi Arabia |
Molyneux,S.G. et al. Palynology of a problematic lower Palaeozoic lithofacies in the central Arabian Basin, Saudi Arabia. |
2000 |
| details |
Gorstian |
Ludfordian |
Canada(Nova Scotia) |
Beck,J.H. et al. Silurian spores and cryptospores from the Arisaig Group, Nova Scotia, Canada. |
2001 |
| details |
Early Lochkovian |
|
Scotland(Fife) |
Lavender,K. et al. Lower Devonian spore assemblages from the Arbuthnott Group at Canterland Den in the Midland Valley of Scotland |
2002 |
| details |
Tortonian |
|
Louisiana |
Wrenn,J.H. et al. Palynologic age determination of the Catahoula Formation, Big Creek, Sicily Island, Louisiana. |
2003 |