| original |
Early Permian |
|
Canada(Yukon) |
Bamber,E.W. et al. Stratigraphy and palynology of a Permian section, Tatonduk River, Yukon Territory. |
1969 |
| original |
Moscovian |
|
USSR(Urals) |
Chuvashov,B.I. et al. The Upper Paleozoic Basin of the Sinara Basin. (In: Support sections of the Carboniferous of the Urals. Symposium on the Problems of Stratigraphy. #26. G.N.Papulof and I.V.Pakhomov, editors) |
1979 |
| original |
Tatarian |
|
China(Sinkiang Uighur) |
Hou,J. et al. Late Permian sporo-pollen assemblages. (In: Permian and Triassic Strata and Fossil Assemblages in the Dalongkou Area of Jimsar, Xinjiang. J. Yang et al, editors) |
1986 |