| original |
Middle Callovian |
|
England(Dorset) |
Sarjeant,W.A.S. New Hystrichospheres from the Upper Jurassic of Dorset |
1960 |
| details |
Middle Callovian |
Oxfordian |
England(Dorset) |
Sarjeant,W.A.S. New Hystrichospheres from the Upper Jurassic of Dorset |
1960 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Callovian |
Early Oxfordian |
Europe(N.Europe) |
Christopher,R.A. et al. Introduction to biostratigraphy and time scales. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |