| original |
Late Barremian |
|
England(Surrey) |
Harding,I.C. A dinocyst calibration of the European Boreal Barremian |
1990 |
| details |
Late Barremian |
|
Nd |
Lentin,J.K. et al. Fossil dinoflagellates: index to genera and species. 1993 edition. |
1993 |
| details |
Late Barremian |
Early Aptian |
USSR(Ryazin) |
Iosifova,E.K. Dinocysts from Tchernaya Retchka (Ryazanian-Aptian, Lower Cretaceous) of the Moscow Basin, Russia |
1996 |
| original |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |