| details |
Early Valanginian |
|
Spitsbergen |
…rhus,N. Some dinoflagellate cysts from the lower Cretaceous of Spitsbergen |
1992 |
| details |
Early Valanginian |
Middle Valanginian |
Canada(NWT,Mackenzie) |
…rhus,N. Some dinoflagellate cysts from the lower Cretaceous of Spitsbergen |
1992 |
| details |
Early Valanginian |
|
USSR(Siberia) |
Shulgina,N.I. et al. Distribution of ammonites, foraminifera and dinoflagellate cysts in the Lower Cretaceous reference sections of Khatanga Basin, and Boreal Valanginian biogeography. |
1994 |
| details |
Early Valanginian |
|
USSR(Siberia) |
Shulgina,N.I. et al. Distribution of ammonites, foraminifera and dinoflagellate cysts in the Lower Cretaceous reference sections of Khatanga Basin, and Boreal Valanginian biogeography. |
1994 |
| details |
Late Barremian |
Early Aptian |
USSR(Ryazin) |
Iosifova,E.K. Dinocysts from Tchernaya Retchka (Ryazanian-Aptian, Lower Cretaceous) of the Moscow Basin, Russia |
1996 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Late Volgian |
Early Hauterivian |
Russia(Siberia) |
Lebedeva,N.K. et al. Dinoflagellate cysts and microforaminifera of the Lower Cretaceous Yatria River section, Subarctic Ural, northwest Siberia (Russia). Biostratigraphy, palaeoenvironmental and palaeogeographic discussion. |
1999 |