| details |
Late Wenlockian |
Early Ludlovian |
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| original |
Downtonian |
Early Dittonian |
Wales(Carmarthenshire) |
Richardson,J.B. et al. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales |
1969 |
| details |
Wenlockian |
Downtonian |
Wales |
Owens,B. et al. Some recent advances in Devonian palynology. A review. Report of CIMP Working Group No.13B. |
1972 |
| details |
Early Emsian |
|
Canada(Gaspe Area) |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. |
1973 |
| details |
Early Emsian |
|
Canada(Quebec) |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. |
1973 |
| details |
Middle Wenlockian |
Downtonian |
Libya |
Richardson,J.B. et al. Silurian palynomorphs from the Tanezzuft and Acacus Formations, Tripolitania, North Africa. |
1973 |
| details |
Ludlovian |
Downtonian |
Africa(Sahara) |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Wenlockian |
Gedinnian |
England |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Wenlockian |
Gedinnian |
Wales |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Gedinnian |
Siegenian |
Scotland |
Richardson,J.B. The stratigraphic utilization of some Silurian and Devonian miospore species in the Northern Hemisphere. |
1974 |
| details |
Late Ludlovian |
|
Spain |
Diez,M.D.C.R. et al. Acritarchs and miospores from the Ludlovian of Corniero, Leon, Spain. |
1976 |
| details |
Late Gedinnian |
|
France(Ille-et-Vilaine) |
Moreau-Benoit,A. Spores and vegetable debris in the Early Devonian shales and limestones of Saint-Cenere. (In: Massif Armoricain, France. H.Lardeux, editor) |
1976 |
| details |
Silurian |
Early Devonian |
France(Finistere) |
Deunff,J. et al. On the presence of a rich Silurian-Devonian microplankton acritarchs spores and chitinozoans at the top of the shales and quartzites of Plougastel, Brest-Finistere Basin. |
1976 |
| details |
Ludlovian |
|
England |
Holland,C.H. et al. Stuftgart the British Isles the Silurian-Devonian boundary |
1977 |
| details |
Ludlovian |
|
Wales |
Holland,C.H. et al. Stuftgart the British Isles the Silurian-Devonian boundary |
1977 |
| original |
Ludlovian |
|
Indiana |
Wood,G.D. et al. Silurian, (Ludlovian), Plant Megafossils and Trilete spores from northern Indiana and their bearing on Early land plant evolution |
1977 |
| details |
Emsian |
|
Canada(Quebec) |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.11.Biostratigraphy. |
1977 |