| details |
Hauterivian |
Late Aptian |
W.Germany(Niedersachsen) |
Keupp,H. Calcareous dinoflagellate cysts of the Boreal Lower Cretaceous, (Lower Hauterivian to Lower Albian). |
1981 |
| details |
Late Hauterivian |
Barremian |
England(Yorkshire) |
Keupp,H. Calcareous dinoflagellate cysts of the Boreal Lower Cretaceous, (Lower Hauterivian to Lower Albian). |
1981 |
| details |
Campanian |
Early Maastrichtian |
Atlantic Ocean |
Krasheninnikov,V.A. et al. Cretaceous Calcispherulids of the Falkland Plateau Leg 71, Deep Sea Drilling Project. |
1983 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |