| details |
Artinskian |
Tatarian |
Northern Hemisphere |
Stanichnikova,M.S. The pollen Vittatina Luber ex Wilson and its importance in the stratigraphy of Permian deposits. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Permian |
|
India(West Bengal) |
Tiwari,R.S. et al. Marker assemblage-zones of spores and pollen species through Gondwana Palaeozoic and Mesozoic sequence in India. |
1992 |
| details |
Permian |
|
India(Bihar) |
Tiwari,R.S. et al. Marker assemblage-zones of spores and pollen species through Gondwana Palaeozoic and Mesozoic sequence in India. |
1992 |
| details |
Sakmarian |
|
Iran |
Ghavidel-Syooki,M. Biostratigraphy and paleo-biogeography of some Paleozoic rocks at Zagros and Alborz Mountains. |
1994 |