| details |
Toarcian |
Bajocian |
USSR(WSL) |
Glushko,N.K. et al. Stratigraphy of Jurassic oil-Gas deposits of the stratigraphy of the Western Siberian Lowlands. (In: Stratigraphy and Correlation of Sediments Using Palynology Methods. Materials IV All-Union Palynological Conference. G.N.Papulov, editor) |
1983 |
| details |
Ladinian |
|
USSR(Pre-Urals) |
Tverdokhlebov,V.P. et al. Age of Surakay graycolored deposits and the time-range of Bukobai Group. |
1976 |
| details |
Kazanian |
Tatarian |
USSR(Komi ASSR) |
Faddeeva,I.Z. Miospore complexes in Permian Coal Formation of the Pechorsk Basin. (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |
| details |
Rhaetian |
|
USSR(Urals) |
Prosviryakova,Z.P. Palynological bases for the Early Triassic age of coal deposits of the Korkinsk Coal Region of the Chelyabinsk Basin. (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |
| details |
Nd |
|
Nd |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |