| details |
Late Albian |
Cenomanian |
USSR(Kazakh SSR) |
Bolkhovitina,N.A. et al. Stratigraphy of the Continental Cretaceous deposits of the Lower Syr-Dar'Ya Uplift (Northeast Aral Region). |
1963 |
| details |
Hauterivian |
|
USSR |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| details |
Tertiary |
|
Germany |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| original |
Nd |
|
USSR(Ukrainian SSR) |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |