| details |
Early Jurassic |
Aalenian |
USSR(Ukrainian SSR) |
Semenova,E.V. Spore and pollen assemblages of deposits of the Jurassic and Triassic Boundary of the Don Basin. |
1970 |
| details |
Early Jurassic |
|
USSR(Uzbek SSR) |
Barkhatnaya,I.N. et al. Jurassic spore and pollen assemblages; Bukharo-Khivinskaya Oblast, (Western Uzbek). (In: Spore and pollen of the Jurassic and Lower Cretaceous from Central Asia. N.A. Bolkhovitina and N.I. Fokina, editors.) |
1971 |
| details |
Toarcian |
Callovian |
USSR(Uzbek SSR) |
Kuzichkina,Y.M. et al. Early Mesozoic spore-pollen assemblages from Uzbekistan and their importance for correlation. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |