Polyedryxium |
Polyedryxium tectum
|
USA |
Devonian |
|
Polyedryxium |
Polyedryxium tectum
|
France |
Devonian |
|
Polyedryxium |
Polyedryxium tectum
|
Tunisia |
Devonian |
|
Polyedryxium |
Polyedryxium trifissile
|
Canada |
Devonian |
|
Polyedryxium |
Polyedryxium trifissile
|
USA |
Devonian |
|
Polyedryxium |
Polyedryxium trifissile
|
France |
Devonian |
|
Polyedryxium |
Polyedryxium trifissile
|
Tunisia |
Devonian |
|
Pterospermopsis |
Pterospermopsis heol
|
Canada |
Devonian |
|
Pterospermopsis |
Pterospermopsis heol
|
USA |
Devonian |
|
Pterospermopsis |
Pterospermopsis heol
|
France |
Devonian |
|
Pterospermopsis |
Pterospermopsis heol
|
Tunisia |
Devonian |
|
Pterospermopsis |
Pterospermopsis onondagaensis
|
Canada |
Devonian |
|
Pterospermopsis |
Pterospermopsis onondagaensis
|
USA |
Devonian |
|
Pterospermopsis |
Pterospermopsis onondagaensis
|
France |
Devonian |
|
Pterospermopsis |
Pterospermopsis onondagaensis
|
Tunisia |
Devonian |
|
Pterospermopsis |
Pterospermopsis timofeevii
|
Canada |
Devonian |
|
Pterospermopsis |
Pterospermopsis timofeevii
|
USA |
Devonian |
|