details |
Middle Siegenian |
Late Siegenian |
Wales(Pembrokeshire) |
Allen,J.R.L. et al. Field Meeting: The facies of the Lower Old Red Sandstone, North of Milford Haven, Southwest Dyfed, Wales. |
1981 |
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(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(Carmarthenshire) |
Wellman,C.H. et al. The Cosheston Group (Lower Old Red Sandstone) in southwest Wales: age, correlation and palaeobotanical significance. |
1998 |
details |
Siegenian |
|
Wales |
Richard,G. Composition and stratigraphic significance of dispersed-miospore assemblages from the Lower Devonian Cosheston Group, southwest Wales. |
1984 |
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 |
Middle Siegenian |
Late Siegenian |
Wales |
Thomas,R.G. Locality B17, Mill Bay, (West) near Cosheston, 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 |
Siegenian |
|
USSR(Turkmen SSR) |
Arkhangelskaya,A.D. Spores from the Lower and Middle Devonian deposits of the Russian Platform. (In: Atlas of Spores and Pollen of Oil and Gas Bearing Deposits of the Russian and Turonskoi Platform. V.V.Menner and T.V.Byvsheva, editors) |
1985 |
details |
Siegenian |
|
USSR(Russian Platform) |
Arkhangelskaya,A.D. Zonal spore assemblages and stratigraphy of the Lower and Middle Devonian of the Russian Platform. (In: Atlas of Spores and Pollen of Oil and Gas Bearing Deposits of the Russian and Turonskoi Platform. V.V.Menner and T.V.Byvsheva, editors) |
1985 |
details |
Late Siegenian |
|
USSR(Pre-Baltic) |
Arkhangelskaya,A.D. New data of the Lower Devonian palynology in the Western Regions of the USSR. |
1980 |
original |
Late Siegenian |
|
USSR(Lithuanian SSR) |
Arkhangelskaya,A.D. Plant spores from some Lower Devonian sections of the Western Regions of the Russian Platform. (In: Palinologicheskie issledovaniya Proterozoya i Fanerozoya neftegazonoshykh. T.V. Byvsheva, editor.) |
1980 |
details |
Siegenian |
|
USSR(European) |
Arkhangelskaya,A.D. A detailed biostratigraphic classification of Early Devonian deposits of European USSR, (Based on plant spores) |
1985 |
details |
Emsian |
|
Saudi Arabia |
Stump,T.E. et al. The stratigraphy, depositional environments and periods of deformation of the Wajid outcrop Belt, southwestern Saudi Arabia |
1995 |
details |
Late Gedinnian |
Late Emsian |
Northern Hemisphere |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
details |
Siegenian |
Early Emsian |
Northern Hemisphere |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
details |
Siegenian |
Emsian |
North America |
McGregor,D.C. Devonian miospores of N.America. |
1979 |