| original |
Middle Oligocene |
Late Oligocene |
W.Germany(N.Rhine) |
Benedek,P.N. Phytoplanktons from the Middle and Upper Oligocene of Tonisberg, (Lower Rhine area). |
1972 |
| details |
Middle Oligocene |
Late Oligocene |
Nd |
Lentin,J.K. et al. Fossil dinoflagellates: index to genera and species. |
1973 |
| details |
Middle Oligocene |
Late Oligocene |
W.Germany(N.Rhine) |
Stover,L.E. et al. Analyses of pre-Pleistocene organic-walled dinoflagellates. |
1978 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |