| details |
Kungurian |
|
USSR(Russian Platform) |
Abramova,S.A. et al. The problem of classifying forms of genus Vittatina, Lub., and forms with a ribbed body and air sacs. (Taxonomy and Methods for the Study of Fossl Pollen and Spores. V.N. Saks and A.F. Khlonova, editors) |
1964 |
| details |
Early Triassic |
|
USSR(Russian Platform) |
Murakhovskaya,E.I. Lower Triassic deposits from the Semipalatinsk Region of Irtush |
1970 |
| details |
Kungurian |
|
USSR(Kazakh SSR) |
Zhuravlev,V.S. et al. Kazanian Salt-bearing deposits in the eastern part of the Pre-Caspian Depression and its northern Surroundings |
1972 |
| details |
Ladinian |
Carnian |
USSR(Urals) |
Tuzhikova,V.I. Lithology and stratigraphy of the Lower Mesozoic deposits of the Urals. (In: The history of the Lower Mesozoic accumulation of Coals in the Urals) |
1973 |