Gonyaulacysta |
Gonyaulacysta cladophora
|
North Sea |
Oxfordian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta jurassica
|
North Sea |
Oxfordian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta longicornis
|
North Sea |
Middle Volgian |
Early Ryazanian |
Gonyaulacysta |
Gonyaulacysta longicornis
|
North Sea |
Late Kimmeridgian |
Early Volgian |
Gymnospermae |
Gymnospermae
|
North Sea |
Middle Jurassic |
Cenomanian |
Heslertonia |
Heslertonia heslertonensis
|
North Sea |
Late Ryazanian |
Early Albian |
Hexagonifera |
Hexagonifera jurassica
|
North Sea |
Kimmeridgian |
Middle Volgian |
Hystrichodinium |
Hystrichodinium ramoides
|
North Sea |
Barremian |
|
Kleithriasphaeridium |
Kleithriasphaeridium fasciatum
|
North Sea |
Late Ryazanian |
Early Barremian |
Kleithriasphaeridium |
Kleithriasphaeridium fasciatum
|
North Sea |
Late Ryazanian |
Early Valanginian |
Kleithriasphaeridium |
Kleithriasphaeridium porosispinum
|
North Sea |
Middle Volgian |
Ryazanian |
Kleithriasphaeridium |
Kleithriasphaeridium simplicispinum
|
North Sea |
Valanginian |
Early Albian |
Litosphaeridium |
Litosphaeridium siphoniphorum
|
North Sea |
Late Albian |
Cenomanian |
Muderongia |
Muderongia simplex
|
North Sea |
Late Ryazanian |
Hauterivian |
Muderongia |
Muderongia sp
|
North Sea |
Middle Volgian |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
North Sea |
Late Kimmeridgian |
Middle Volgian |
Oligosphaeridium |
Oligosphaeridium sp
|
North Sea |
Hauterivian |
|