Valensiella |
Valensiella vermiculata
|
North Sea |
Late Bathonian |
Middle Callovian |
Valensiella |
Valensiella vermiculata
|
Scotland(Kincardine) |
Late Bathonian |
Middle Callovian |
Valensiella |
Valensiella vermiculata
|
England(Dorset) |
Late Bathonian |
Middle Callovian |
Valensiella |
Valensiella vermiculata
|
Switzerland |
Early Oxfordian |
|
Valensiella |
Valensiella vermiculata
|
W.Germany(Bavaria) |
Early Oxfordian |
|
Valensiella |
Valensiella vermiculata
|
Spitsbergen |
Late Bathonian |
Early Callovian |
Valensiella |
Valensiella vermiculata
|
USSR(Franz Josef Land) |
Late Bathonian |
Early Callovian |
Valensiella |
Valensiella vermiculata
|
Greenland |
Late Bathonian |
Middle Callovian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
Arctic Ocean(Barents Sea) |
Callovian |
Early Oxfordian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
Atlantic(Norwegian Sea) |
Late Bathonian |
Early Oxfordian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
England(Yorkshire) |
Late Bathonian |
Middle Callovian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
Spitsbergen |
Callovian |
Early Oxfordian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
USSR(Franz Josef Land) |
Callovian |
Early Oxfordian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
Greenland |
Late Bathonian |
Early Oxfordian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
England(Lincolnshire) |
Late Bathonian |
Middle Callovian |
Valvaeodinium |
Valvaeodinium groenlandicum
|
England(Nottinghamshire) |
Late Bathonian |
Middle Callovian |
Valvaeodinium |
Valvaeodinium spinosum
|
Arctic Ocean(Barents Sea) |
Callovian |
Early Oxfordian |