Hystrichodinium |
Hystrichodinium pulchrum
|
England(Yorkshire) |
Early Barremian |
Middle Barremian |
Hystrichodinium |
Hystrichodinium ramoides
|
England(Yorkshire) |
Barremian |
|
Hystrichodinium |
Hystrichodinium voigtii
|
England(Yorkshire) |
Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium anthophorum
|
England(Yorkshire) |
Aptian |
Albian |
Hystrichosphaeridium |
Hystrichosphaeridium anthophorum
|
Australia(W.Australia) |
Oxfordian |
Tithonian |
Hystrichosphaeridium |
Hystrichosphaeridium arborispinum
|
England(Yorkshire) |
Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium biformoides
|
England |
Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium biformoides
|
E.Germany |
Late Eocene |
Early Oligocene |
Hystrichosphaeridium |
Hystrichosphaeridium biformoides
|
Poland |
Early Oligocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium cooksoniae
|
England(Yorkshire) |
Middle Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium cooksoniae
|
Canada(Alberta) |
Late Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium ferox
|
England(Yorkshire) |
Middle Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium ferox
|
France(Paris Basin) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium phoenix
sp. nov. |
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Hystrichosphaeridium |
Hystrichosphaeridium recurvatum
|
England(Yorkshire) |
Early Barremian |
Middle Barremian |
Hystrichosphaeridium |
Hystrichosphaeridium tridactylites
|
England(Yorkshire) |
Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium tridactylites
|
France(Cher) |
Cretaceous |
|