| details |
Valanginian |
Aptian |
Bulgaria |
Ercegovac,M. et al. Microfloral residues from the Lower Cretaceous of the Stara Planina Montains, Bulgaria. |
1972 |
| details |
Stephanian |
|
USSR(Ukrainian SSR) |
Egorov,A.I. et al. Coniferous pollen grains from the Middle Carboniferous of the Donetz Basin. |
1967 |
| details |
Valanginian |
Hauterivian |
USSR(Siberia) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Middle Jurassic |
|
USSR(Siberia) |
Bolkhovitina,N.A. Spore and pollen complexes of the Triassic to the Lower Cretaceous (East of Yenisey River) |
1967 |
| details |
Middle Jurassic |
Tithonian |
USSR(Krasnoyarsk Kray) |
Bailbarodskikh,N.I. Analysis of Jurassic deposits of the Turukhana River Basin and surrounding area. (In: Collected Articles on Geology and Oil-Gas Formations of the Arctic. B.V. Tkachenko, editor) |
1962 |