| details |
Eocene |
Oligocene |
India(Tripura) |
Banerjee,D. et al. Hystrichosphaerids in the Tertiary Formations of Assam and Tripura. |
1972 |
| details |
Nd |
|
Nd |
Lentin,J.K. et al. Fossil dinoflagellates: index to genera and species. |
1973 |
| details |
Kimmeridgian |
Volgian |
Canada(British Columbia) |
Pocock,S.A.J. Dating and correlation of the Jurassic strata of western Canada by means of plant microfossils. (In: Report of Activities of the CSPG Paleontology Division 1975/1976) |
1977 |
| details |
Neocomian |
|
Egypt |
Aboul Ela,N.M. Lower Cretaceous Micfoflora from the North-Western Desert of Egypt. |
1979 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |