| original |
Late Gedinnian |
|
Scotland(Fife) |
Richardson,J.B. et al. Miospores, correlation and age of some Scottish Lower Old Red Sandstone sediments from the Strathmore Region (Fife and Angus). |
1984 |
| original |
Wenlockian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| original |
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 |