| details |
Leonardian |
|
Kansas |
Jizba,K.M. Late Paleozoic bisaccate pollen from the United States Midcontinent area. |
1962 |
| details |
Permian |
|
Kansas |
Shaffer,B.L. Microfloral successions in Middle Permian Evaporites of Kansas. |
1961 |
| details |
Late Carboniferous |
|
USSR(Kazakh SSR) |
Orlov,I.V. et al. On the question of the age of the Coal-bearing Suite of the Karaganda Basin and of the PossibiliIty of their correlation with Upper Palaeozoic deposits of other Regions of Central Kazakhstan |
1960 |
| details |
Late Permian |
|
USSR(Kazakh SSR) |
Polukhina,V.A. Spore and pollen assemblages of effusive sedimentary layers of Kushmur in the Turgavskaya Basin. |
1960 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 |
1958 |
| original |
Kungurian |
|
USSR(Urals) |
Samoilovich,S.R. Pollen and spores of Permian deposits of Cherdyn and Aktyubinsk in the Lower Urals. (In: Palaeobotanical Symposium) |
1953 |