details |
Givetian |
|
Canada(NWT,Franklin) |
McGregor,D.C. Devonian spores of the Queen Elizabeth Islands, Northwest Territories |
1970 |
details |
Early Triassic |
|
USSR(Ukrainian SSR) |
Yaroshenko,O.P. et al. Miospores and Lower triassic stratigraphy of the Pechora Syneclise. |
1991 |
details |
Triassic |
|
USSR(WSL) |
Bogatikova,V.K. et al. On the stratigraphic scheme of Meso-Cenozoic deposits of the western part of the West Siberian Plain. |
1957 |
details |
Nd |
|
Nd |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |