| original |
Frasnian |
|
Spitsbergen |
Vigran,J.O. Spores from Devonian deposits, Mimerdalen, Spitsbergen |
1964 |
| details |
Carboniferous |
|
Nd |
Alpern,B. et al. Summary of the report of the group Lycospora. |
1965 |
| details |
Emsian |
Givetian |
Spitsbergen |
Allen,K.C. Lower and Middle Devonian spores of North and Central Vestspitsbergen |
1965 |
| details |
Frasnian |
|
Spitsbergen |
Allen,K.C. Lower and Middle Devonian spores of North and Central Vestspitsbergen |
1965 |
| details |
Devonian |
|
Nd |
Gensel,P.G. Devonian in situ, spores: A survey and discussion. |
1980 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |