| details |
Early Cretaceous |
|
USSR |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| details |
Early Cretaceous |
|
USSR(Caucasus) |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| 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 |
| details |
Neocomian |
|
USSR(Kazakh SSR) |
Garetsky,R.G. The Depth-Geology of the Kokpectinskaya Anticline near Mugodzar Region. |
1957 |
| original |
Early Cretaceous |
|
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |