| details |
Eifelian |
|
Czechoslovakia |
Lele,K.M. Observations on Middle Devonian microfossils from the Barrandian Basin, Czechoslovakia. |
1972 |
| details |
Early Paleozoic |
|
Nd |
Richardson,J.B. Lower Palaeozoic sporomorphs: Their stratigraphical distribution and possible affinites. (In: Evolution and Environment in the Late Silurian and Early Devonian. W.G.Chaloner and J.D. Lawson, editors) |
1985 |
| details |
Early Givetian |
|
Belgium |
Richardson,J.B. et al. A new spore assemblage to correlate between the Breconian (British Isles) and the Gedinnian (Belgium). |
1982 |
| original |
Early Givetian |
|
Belgium |
Streel,M. An association of spores from the Lower Givetian of the Vesdre at Goe, Belgium. |
1964 |
| details |
Downtonian |
Dittonian |
United Kingdom |
Richardson,J.B. Some British Lower Devonian spore assemblages and their stratigraphic significance. |
1967 |
| details |
Devonian |
|
Nd |
Gensel,P.G. Devonian in situ, spores: A survey and discussion. |
1980 |