| details |
Rhaetian |
Liassic |
USSR(WSL) |
Derviz,T.L. Stratigraphy of Jurassic deposits of the Middle Course of the Irtysh'ob and Chulymo-Eniseiskoi Depression. (In: Geology and Petroleum Resources of the western part of the Western Siberian Plain. S.G.Galerkina, editor) |
1959 |
| details |
Hettangian |
Toarcian |
USSR(Urals) |
Malyavkina,V.S. Spore and pollen complexes of Mesozoic deposits of the South-East of the Russian Platform (Emba and West Urals) |
1956 |
| original |
Early Jurassic |
|
USSR(Ukrainian SSR) |
Malyavkina,V.S. Determination key of spores and pollen, Jurassic-Cretaceous |
1949 |