| details |
Early Tournaisian |
|
Wales(Glamorgan) |
Allen,K.C. et al. Megaspores with multifurcate and bifurcate processes from the Old Red Sandstone facies of Tournasian age, from the Taff Gorge, South Glamorgan, Wales. |
1981 |
| details |
Strunian |
|
Ireland |
Scott,A.C. et al. Paleozoic spores and pollen. Chapter 18G Palaeozoic megaspores. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Mississippian |
|
Ohio |
Allen,K.C. et al. Megaspores with multifurcate and bifurcate processes from the Old Red Sandstone facies of Tournasian age, from the Taff Gorge, South Glamorgan, Wales. |
1981 |