Corystisporites |
Corystisporites collaris
|
Canada(Arctic) |
Eifelian |
Givetian |
Corystisporites |
Corystisporites hirsutus
|
Canada(Arctic) |
Eifelian |
Givetian |
Corystisporites |
Corystisporites multispinosus
sp. nov. |
Canada(Arctic) |
Eifelian |
Middle Givetian |
Corystisporites |
Corystisporites multispinosus
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Corystisporites |
Corystisporites multispinosus
|
Canada(Arctic) |
Eifelian |
Givetian |
Corystisporites |
Corystisporites robustus
|
Canada(Arctic) |
Eifelian |
Givetian |
Corystisporites |
Corystisporites serratus
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Corystisporites |
Corystisporites serratus
|
USSR(Russian Platform) |
Givetian |
|
Craspedispora |
Craspedispora arctica
sp. nov. |
Canada(Arctic) |
Eifelian |
Middle Givetian |
Cristatisporites |
Cristatisporites albus
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Cristatisporites |
Cristatisporites albus
|
USSR(Russian Platform) |
Middle Givetian |
|
Cristatisporites |
Cristatisporites conannulatus
|
Canada(Arctic) |
Eifelian |
Givetian |
Cristatisporites |
Cristatisporites euglyphus
|
France(Boulonnais) |
Givetian |
|
Cristatisporites |
Cristatisporites hesperus
|
Spitsbergen |
Givetian |
|
Cristatisporites |
Cristatisporites inusitatus
|
Spitsbergen |
Late Givetian |
|
Cristatisporites |
Cristatisporites mediconus
|
Canada(Arctic) |
Eifelian |
Givetian |
Cristatisporites |
Cristatisporites naumovae
|
Canada(Arctic) |
Givetian |
|