| original |
Ypresian |
|
England(Kent) |
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 |
Early Eocene |
|
Nd |
Sarjeant,W.A.S. The stratigraphical distribution of fossil dinoflagellates. |
1967 |
| details |
Ypresian |
|
England(Kent) |
Sarjeant,W.A.S. The genus Spiniferites Mantell,1850, (Dinophyceae). |
1970 |
| details |
Eocene |
|
England |
Eisenack,A. et al. Katalog der Fossilen Dinoflagellaten, Hystrichosph¤ren und Verwandten Mikrofossilien. Band I. Dinoflagellaten. 2.Erg¤nzungslieferung.III + 215p |
1971 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |