Hystrichosphaeridium |
Hystrichosphaeridium xanthiopyxides
|
France(Paris Basin) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium pseudhystrichodinium
|
France(Paris Basin) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium truncigerum
|
France(Paris Basin) |
Senonian |
|
Gonyaulacysta |
Gonyaulacysta
|
France(Pas-de-Calais) |
Oxfordian |
|
Polysphaeridium |
Polysphaeridium paulinae
|
France(Poitou) |
Bajocian |
|
Hystrichogonyaulax |
Hystrichogonyaulax cornigera
|
France(Poitou) |
Bajocian |
Bathonian |
Gonyaulax |
Gonyaulax cornigera
|
France(Poitou) |
Bajocian |
Bathonian |
Micrhystridium |
Micrhystridium paulinae
|
France(Poitou) |
Bajocian |
|
Polysphaeridium |
Polysphaeridium deflandrei
|
France(Vienne) |
Middle Jurassic |
|
Cleistosphaeridium |
Cleistosphaeridium polytrichum
|
France(Vienne) |
Bathonian |
|
Polysphaeridium |
Polysphaeridium deflandrei
|
France(Vienne) |
Middle Jurassic |
|
Hystrichosphaeridium |
Hystrichosphaeridium polytrichum
|
France(Vienne) |
Bathonian |
|
Gonyaulacysta |
Gonyaulacysta microceras
|
Germany |
Early Cretaceous |
|
Gonyaulacysta |
Gonyaulacysta granulata
|
Germany |
Late Jurassic |
|
Leptodinium |
Leptodinium arcuatum
|
Germany |
Late Jurassic |
|
Leptodinium |
Leptodinium mirabile
|
Germany |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta tenuitabulata
|
Germany |
Oligocene |
Miocene |