| details |
Middle Jurassic |
|
USSR(Yakut ASSR) |
Bolkhovitina,N.A. Spore-pollen complexes from the Mesozoic deposits of the Vilyuy Basin and their importance for stratigraphy. |
1959 |
| details |
Bajocian |
Bathonian |
USSR(Tuvinskaya A.O.) |
Timofeev,P.P. On the age and range of Jurassic Coal deposits of Tuvi |
1958 |
| details |
Late Valanginian |
Hauterivian |
USSR(Yakut ASSR) |
Kara-Murza,E.N. Some data on the composition of spore-pollen complexes of the marine Lower Cretaceous of the Nordvik Region. |
1958 |
| details |
Middle Jurassic |
|
USSR(Tuvinskaya A.O.) |
Timofeev,P.P. The age and subdivision of the Jurassic Coal-bearing deposits of Tuva. |
1958 |
| details |
Hauterivian |
|
USSR(Kazakh SSR) |
Bolkhovitina,N.A. Spore and pollen complex of the Hauterivian of Premugodzhar. |
1958 |
| details |
Hauterivian |
|
USSR(Kazakh SSR) |
Garetsky,R.G. The Depth-Geology of the Kokpectinskaya Anticline near Mugodzar Region. |
1957 |
| original |
Late Jurassic |
Early Cretaceous |
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |