| 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 |
Early Homerian |
Late Downtonian |
England |
Aldridge,R.J. et al. Microfossil distribution in the Silurian of Britian and Ireland. |
1979 |
| details |
Late Eltonian |
Late Downtonian |
England |
Aldridge,R.J. et al. Microfossil distribution in the Silurian of Britian and Ireland. |
1979 |
| details |
Early Homerian |
Late Downtonian |
Ireland |
Aldridge,R.J. et al. Microfossil distribution in the Silurian of Britian and Ireland. |
1979 |
| details |
Late Eltonian |
Late Downtonian |
Ireland |
Aldridge,R.J. et al. Microfossil distribution in the Silurian of Britian and Ireland. |
1979 |