Orbicularia variabiliformis
- Citations total:
- 3
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| original | Middle Jurassic | USSR(Aktyubinskaya) | Malyavkina,V.S. Determination key of spores and pollen, Jurassic-Cretaceous | 1949 | |
| details | Early Bajocian | USSR(Urals) | Malyavkina,V.S. Spore and pollen complexes of Mesozoic deposits of the South-East of the Russian Platform (Emba and West Urals) | 1956 | |
| details | Domerian | USSR(Taymyr Nat.Okrug) | Kara-Murza,E.N. Palynological basis of stratigraphical subdivision of the Mesozoic deposits of the Khatanga Depression. | 1960 |