Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
North Sea |
Late Bathonian |
Middle Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
England(Yorkshire) |
Late Bathonian |
Early Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
England(Dorset) |
Late Bathonian |
Early Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
W.Germany(Niedersachsen) |
Late Bathonian |
Early Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
Netherlands |
Late Bathonian |
Early Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
France(Herault) |
Late Bathonian |
Early Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
England(Lincolnshire) |
Late Bathonian |
Early Callovian |
Hystrichogonyaulax |
Hystrichogonyaulax regalis
|
England(Nottinghamshire) |
Late Bathonian |
Early Callovian |
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
North Sea |
Early Oxfordian |
|
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
England(Yorkshire) |
Late Callovian |
|
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
Switzerland |
Late Callovian |
Early Oxfordian |
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
W.Germany(Bavaria) |
Late Callovian |
Early Oxfordian |
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
France(Herault) |
Early Oxfordian |
|
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
England(Lincolnshire) |
Late Callovian |
|
Hystrichosphaerina |
Hystrichosphaerina orbifera
|
England(Nottinghamshire) |
Late Callovian |
|
Jansonia |
Jansonia jurassica
|
Arctic Ocean(Barents Sea) |
Early Callovian |
Middle Callovian |
Jansonia |
Jansonia jurassica
|
Spitsbergen |
Early Callovian |
Middle Callovian |