Duvernaysphaera |
Duvernaysphaera stellata
|
France |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera stellata
|
Tunisia |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera tessella
|
Canada |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera tessella
|
USA |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera tessella
|
France |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera tessella
|
Tunisia |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera wilsonii
|
Canada |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera wilsonii
|
USA |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera wilsonii
|
France |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera wilsonii
|
Tunisia |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium classicum
sp. nov. |
Canada |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium classicum
|
USA |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium classicum
|
France |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium classicum
|
Tunisia |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium patriarchum
|
Canada |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium patriarchum
|
USA |
Devonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium patriarchum
|
France |
Devonian |
|