| original |
Late Carboniferous |
Early Permian |
USSR(Yakut ASSR) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Artinskian |
Kungurian |
USSR(Urals) |
Dyupina,G.V. Palynological characteristics of the boundry between the Artinskian and Kungurian deposits of the Central Pre-Urals. (In: Biostratigraphy of the Artinskian and Kungurian Stages of the Urals. D.M.Rauzer-Chernousova and B.I.Chuvashov, editors) |
1980 |
| details |
Early Permian |
|
USSR(Kirov) |
Plamenskaya,A.G. et al. New data on the composition and age of Zhaman-Bulak Suit in Southern Dzhungaria |
1990 |