| original |
Tertiary |
|
USSR(Caucasus) |
Gladkova,A.N. Flora of Maikop deposits of northern Caucasus from data of spore-pollen analysis. (In: Palaeobotanical Symposium) |
1953 |
| original |
Early Oligocene |
|
USSR(WSL) |
Ushakova,M.V. et al. Lower Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Middle Eocene |
Late Eocene |
USSR(Yakut ASSR) |
Kulkova,I.A. Palynological research of Eocene sediments of Yano-Indirgir Lowland |
1973 |
| original |
Early Senonian |
|
USSR(Koryak Okrug) |
Anonymous Short description of spores and pollen from Upper Cretaceous deposits of Kamchatka. (In: Atlas of Upper Cretaceous, Paleocene and Eocene spore-pollen complexes of various Regions of the USSR). |
1960 |