Areoligera |
Areoligera espiritosantensis
|
Brazil |
Middle Maastrichtian |
|
Hystrichosphaera |
Hystrichosphaera sergipensis
|
Brazil |
Early Eocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium alagoense
|
Brazil |
Middle Eocene |
Miocene |
Hystrichosphaeridium |
Hystrichosphaeridium aracajuense
|
Brazil |
Paleocene |
Early Eocene |
Hystrichosphaeridium |
Hystrichosphaeridium caiobense
|
Brazil |
Paleocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium espiritosantense
|
Brazil |
Middle Maastrichtian |
|
Hystrichosphaeridium |
Hystrichosphaeridium maranhense
|
Brazil |
Middle Albian |
Cenomanian |
Hystrichosphaeridium |
Hystrichosphaeridium sergipense
|
Brazil |
Early Eocene |
|
Spiniferites |
Spiniferites aracajuensis
|
Brazil |
Paleocene |
Early Eocene |
Spiniferites |
Spiniferites maranhensis
|
Brazil |
Middle Albian |
Cenomanian |
Surculosphaeridium |
Surculosphaeridium alagoense
|
Brazil |
Middle Eocene |
Miocene |
Dingodinium |
Dingodinium exiguum
sp. nov. |
Bulgaria |
Late Bathonian |
|
Pseudoceratium |
Pseudoceratium hansgochtii
sp. nov. |
Canada(Alberta) |
Late Albian |
Early Cenomanian |
Fromea |
Fromea glabella
|
Canada(Alberta) |
Late Albian |
|
Palaeostomocystis |
Palaeostomocystis glabella
|
Canada(Alberta) |
Late Albian |
|
Cleistosphaeridium |
Cleistosphaeridium separatum
|
Canada(NWT,Mackenzie) |
Early Valanginian |
Middle Valanginian |
Cleistosphaeridium |
Cleistosphaeridium spissum
|
Canada(NWT,Mackenzie) |
Early Valanginian |
Middle Valanginian |