Achomosphaera |
Achomosphaera
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Achomosphaera |
Achomosphaera alcicornu
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Hafniasphaera |
Hafniasphaera
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Hystrichostrogylon |
Hystrichostrogylon
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Hystrichostrogylon |
Hystrichostrogylon holohymenium
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Hystrichostrogylon |
Hystrichostrogylon membraniphorum
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Rottnestia |
Rottnestia
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Spiniferites |
Spiniferites
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Spiniferites |
Spiniferites compactus
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Spiniferites |
Spiniferites pseudofurcatus
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |
Spiniferites |
Spiniferites ramosus
|
Canada(Eastern Offshore) |
Eocene |
Oligocene |