original |
Early Cretaceous |
|
USSR(Krasnoyarsk Kray) |
Malyavkina,V.S. Determination key of spores and pollen, Jurassic-Cretaceous |
1949 |
original |
Early Cretaceous |
|
USSR(Aktyubinskaya) |
Malyavkina,V.S. Determination key of spores and pollen, Jurassic-Cretaceous |
1949 |
original |
Early Cretaceous |
|
USSR(Ukrainian SSR) |
Malyavkina,V.S. Determination key of spores and pollen, Jurassic-Cretaceous |
1949 |
original |
Early Cretaceous |
|
USSR(Ukrainian SSR) |
Malyavkina,V.S. Determination key of spores and pollen, Jurassic-Cretaceous |
1949 |
original |
Hauterivian |
|
Mongolian Republic |
Malyavkina,V.S. Spores and pollen of the Lower Cretaceous of the eastern Gobi Depression. |
1958 |