| original |
Late Rhuddanian |
|
Wales(Dyfed) |
Burgess,N.D. Silurian Cryptospores and miospores from the type Llandovery area, southwest Wales. |
1991 |
| 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 |
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 |
Nd |
|
Nd |
Richardson,J.B. Paleozoic spores and pollen: Lower and Middle Palaeozoic record of terrestrial palynomorphs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |