| original |
Early Permian |
Late Permian |
USSR(Pre-Urals) |
Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. |
1941 |
| details |
Late Permian |
|
Mongolian Republic |
Bobrov,V.A. et al. On Upper Permian coal-bearing formations of Southern Mongolia. |
1957 |
| details |
Late Carboniferous |
|
Bulgaria |
Chernyavska,S. Palynological study of Coal from the Zalenigrad Mine, Belograd Region. |
1960 |
| details |
Late Permian |
|
China(Chekiang) |
Ouyang,S. The microspore assemblage from the Lungtan Series of Changhsing, Chekiang. |
1962 |
| details |
Permian |
|
USSR(Pre-Urals) |
Hart,G.F. The systematics and distribution of Permian miospores. |
1965 |
| details |
Permian |
|
USSR(Siberia) |
Odintsova,M.M. et al. On the age of the Almazon Layers of the southern slope of the Anabarsk Anticline. |
1969 |