| original |
Givetian |
|
Scotland(Orkney) |
Marshall,J.E.A. Insculptospora, a new genus of Devonian camerate spore with sculptured intexine. |
1985 |
| details |
Middle Givetian |
Early Frasnian |
Scotland(Orkney) |
Marshall,J.E.A. et al. Devonian marine Incursions in the Orcadian Basin, Scotland. |
1996 |
| details |
Eifelian |
Givetian |
Scotland(Orkney) |
Marshall,J.E.A. Rhabdosporites langii, Geminospora lemurata and Contagisporites optivus: An origin for Heterospory within the Progymnosperms |
1996 |
| details |
Middle Eifelian |
|
Scotland(Grampian) |
Marshall,J.E.A. et al. Middle Devonian (Eifelian) spores from a fluvial dominated lake margin in the Orcadian Basin, Scotland |
2002 |