| original |
Ypresian |
|
England(Isle of Wight) |
Davey,R.J. et al. The genera Hystrichosphaera and Achomosphaera. (In: Studies on Mesozoic and Cainozoic Dinoflagellate Cysts. R.J.Davey, C.Downie, W.A.S.Sarjeant and G.L.Williams) |
1966 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Late Cretaceous |
|
France |
Norris,G. et al. A descriptive index of genera of fossil Dinophyceae and acritarcha. |
1965 |
| details |
Early Cenomanian |
|
England(Cambridgeshire) |
Cookson,I.C. et al. Microplankton from the Cambridge Greensand (Mid-Cretaceous) |
1964 |
| details |
Late Cretaceous |
|
France(Herault) |
Evitt,W.R. A discussion and proposals concerning fossil dinoflagellates, hystrichospheres, and acritarchs, I. |
1963 |