Gonyaulacysta |
Gonyaulacysta diutina
|
Norway |
Ryazanian |
|
Paragonyaulacysta |
Paragonyaulacysta borealis
|
Norway |
Volgian |
Early Valanginian |
Gonyaulacysta |
Gonyaulacysta helicoidea
|
Norway |
Ryazanian |
Early Aptian |
Systematophora |
Systematophora palmula
|
Norway |
Ryazanian |
Early Valanginian |
Apteodinium |
Apteodinium conjunctum
|
Norway |
Late Ryazanian |
|
Stiphrosphaeridium |
Stiphrosphaeridium arbustum
|
Norway |
Late Ryazanian |
|
Cleistosphaeridium |
Cleistosphaeridium tribuliferum
|
Norway |
Late Ryazanian |
|
Oligosphaeridium |
Oligosphaeridium diluculum
|
Norway |
Ryazanian |
|
Egmontodinium |
Egmontodinium polyplacophorum
|
Norway |
Ryazanian |
|
Cleistosphaeridium |
Cleistosphaeridium separatum
|
Norway |
Ryazanian |
Early Valanginian |
Gonyaulacysta |
Gonyaulacysta sp.A Brid.,1977
sp. nov. |
Norway |
Late Ryazanian |
|
Muderongia |
Muderongia simplex
|
Norway |
Valanginian |
Early Barremian |
Kleithriasphaeridium |
Kleithriasphaeridium corrugatum
|
Norway |
Valanginian |
Middle Hauterivian |
Gonyaulacysta |
Gonyaulacysta angulosa
|
Norway |
Early Valanginian |
|
Chlamydophorella |
Chlamydophorella trabeculosa
|
Norway |
Valanginian |
Early Aptian |
Oligosphaeridium |
Oligosphaeridium perforatum
|
Norway |
Valanginian |
Early Aptian |
Pseudoceratium |
Pseudoceratium pelliferum
|
Norway |
Valanginian |
Early Barremian |