| details |
Early Callovian |
|
North Sea |
Cockings,J.H. et al. Bathonian to Mid-Oxfordian sequence stratigraphy of South Viking Graben, North Sea. (In: Exploration Britain Geological insights for the Next Decade. R.F.P. Hardman, editor) |
1992 |
| details |
Early Callovian |
Middle Callovian |
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 |
| details |
Bajocian |
Middle Callovian |
England(Dorset) |
Ainsworth,N.R. et al. A proposed Latest Triassic to Earliest Cretaceous microfossil biozonation for the English Channel and its adjacent areas. (In: The development, evolution and petroleum geology of the Wessex Basin. J.R.Underhill, editor) |
1998 |