| original |
Late Siegenian |
Early Emsian |
Canada(Gaspe Area) |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. |
1973 |
| original |
Late Siegenian |
Early Emsian |
Canada(Quebec) |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. |
1973 |
| details |
Late Siegenian |
Emsian |
Canada(Quebec) |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.11.Biostratigraphy. |
1977 |
| details |
Siegenian |
Emsian |
France(Ardennes) |
Steemans,P. The study of palynostratigraphy of the Devonian of western Europe. |
1986 |
| details |
Siegenian |
Emsian |
W.Germany(N.Rhine) |
Steemans,P. The study of palynostratigraphy of the Devonian of western Europe. |
1986 |