| details |
Early Siegenian |
Middle Siegenian |
Wales |
Thomas,R.G. Locality B16, Muscle Bridge Quarry, Neyland, southwest Pyfed. (In: A Field Guide to Selected Outcrop Area of the Devonian of Scotland, the Welsh Borderland and South Wales. P.F.Friend and B.P.L.Williams, editors) |
1978 |
| details |
Late Siegenian |
Pragian |
France(Mayenne) |
Le H©riss©,A. Lower Devonian spores of the Laval Synclinorium (Massif Armoricain) |
1983 |
| details |
Siegenian |
|
Wales |
Richard,G. Composition and stratigraphic significance of dispersed-miospore assemblages from the Lower Devonian Cosheston Group, southwest Wales. |
1984 |
| details |
Gedinnian |
|
England(Worcestershire) |
Barclay,W.J. et al. Brackish water faunas from the St.Maughans Formation: The Old Red Sandstone Section at Ammons Hill, Hereford and Worcester, United Kingdom re-examined. |
1994 |
| details |
Gedinnian |
|
England(Herefordshire) |
Barclay,W.J. et al. Brackish water faunas from the St.Maughans Formation: The Old Red Sandstone Section at Ammons Hill, Hereford and Worcester, United Kingdom re-examined. |
1994 |
| details |
Late Gedinnian |
Siegenian |
Wales(Dyfed) |
Wellman,C.H. et al. The Cosheston Group (Lower Old Red Sandstone) in southwest Wales: age, correlation and palaeobotanical significance. |
1998 |
| details |
Late Gedinnian |
Siegenian |
Wales(Gwent) |
Wellman,C.H. et al. The Cosheston Group (Lower Old Red Sandstone) in southwest Wales: age, correlation and palaeobotanical significance. |
1998 |
| details |
Late Gedinnian |
Siegenian |
Wales(Glamorgan) |
Wellman,C.H. et al. The Cosheston Group (Lower Old Red Sandstone) in southwest Wales: age, correlation and palaeobotanical significance. |
1998 |
| details |
Late Gedinnian |
Siegenian |
Wales(Carmarthenshire) |
Wellman,C.H. et al. The Cosheston Group (Lower Old Red Sandstone) in southwest Wales: age, correlation and palaeobotanical significance. |
1998 |
| details |
Late Lochkovian |
|
|
Rubinstein,C. et al. Lochkovian (Earliest Devonian) miospores from the Solimoes Basin, northwestern Brazil. |
2005 |