| details |
Permian |
|
USSR(Kazakh SSR) |
Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. |
1941 |
| details |
Permian |
|
USSR(Urals) |
Bolkhovitina,N.A. Pollen of Conifers in Mesozoic deposits and its value for stratigraphy. |
1952 |
| details |
Late Carboniferous |
|
Bulgaria |
Chernyavska,S. Palynological study of Coal from the Zalenigrad Mine, Belograd Region. |
1960 |
| details |
Late Permian |
|
USSR(Evenki Nat.Okrug) |
Gutova,L.N. et al. Palynologic characteristics of the Upper Paleozoic of southeastern Part of Tungusski Basin, |
1966 |
| details |
Permian |
|
Romania |
Givulescu,R. The fossil flora of Roumania; Second Supplement, first Part. |
1973 |