| details |
Hauterivian |
Barremian |
USSR(Ukrainian SSR) |
Chuprin,N.E. et al. New facts about stratigraphy of Lower Cretaceous sediments from the Southwestern Part of the Dneprovo-Donets Lowland. |
1963 |
| details |
Albian |
Cenomanian |
USSR(Primorsk Kray) |
Verbitskaya,Z.I. Stratigraphical subdivision of Cretaceous sediments of Suchan Coal Basin based on palynology. |
1962 |
| details |
Early Cretaceous |
|
USSR(Orenburg) |
Faddeeva,I.Z. Spore-pollen complexes of Lower Mesozoic deposits in the southern part of the Magnitogorsk Syncline. (In: History of Lower Mesozoic Coal Accumulation in Kazakhstan: Part 1.) |
1961 |
| details |
Early Cretaceous |
|
USSR |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| details |
Aptian |
|
USSR |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| details |
Barremian |
|
USSR(Caucasus) |
Yaroshenko,O.P. Spore and pollen complexes of Mesozoic deposits of northern Caucasus and their stratigraphic significance. |
1960 |
| details |
Aptian |
|
USSR(Yakut ASSR) |
Bolkhovitina,N.A. Morphology of spores of the Schizaeaceae Family and the history of the family in the geological past. |
1959 |
| details |
Early Cretaceous |
|
USSR(Yakut ASSR) |
Bolkhovitina,N.A. Spore-pollen complexes from the Mesozoic deposits of the Vilyuy Basin and their importance for stratigraphy. |
1959 |
| original |
Hauterivian |
Cenomanian |
USSR(Koryak Okrug) |
Verbitskaya,Z.I. The spore-pollen complexes in Cretaceous deposits of the Suchan Coal Basin. |
1958 |
| original |
Early Cretaceous |
|
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |