| details |
Toarcian |
Bajocian |
USSR(Ukrainian SSR) |
Semenova,E.V. Spore and pollen assemblages of deposits of the Jurassic and Triassic Boundary of the Don Basin. |
1970 |
| details |
Toarcian |
|
USSR(Yakut ASSR) |
Semenova,E.V. et al. Comparison of spore-pollen complexes in boundary strata of the Lower and Upper Jurassic in the Donets Basin and Yakutia. (In: Palynological Studies of Sedimentary Deposits in the Ukraine and adjacent Regions. Y.V.Teslenko, editor) |
1976 |
| details |
Toarcian |
|
USSR(Ukrainian SSR) |
Semenova,E.V. et al. Comparison of spore-pollen complexes in boundary strata of the Lower and Upper Jurassic in the Donets Basin and Yakutia. (In: Palynological Studies of Sedimentary Deposits in the Ukraine and adjacent Regions. Y.V.Teslenko, editor) |
1976 |