Polyedryxium |
Polyedryxium pruvostii
|
Canada(Ontario) |
Early Devonian |
Middle Devonian |
Polyedryxium |
Polyedryxium pulchrum
|
Canada(Ontario) |
Early Devonian |
Middle Devonian |
Polyedryxium |
Polyedryxium pulchrum
|
Tunisia |
Middle Devonian |
Late Devonian |
Polyedryxium |
Polyedryxium rabians
|
Spain |
Early Devonian |
|
Polyedryxium |
Polyedryxium rabians
|
Nd |
Nd |
|
Polyedryxium |
Polyedryxium robustum
sp. nov. |
Canada(Ontario) |
Early Devonian |
Middle Devonian |
Polyedryxium |
Polyedryxium simplex
|
Canada(Ontario) |
Early Devonian |
Middle Devonian |
Polyedryxium |
Polyedryxium simplex
|
Tunisia |
Middle Devonian |
Late Devonian |
Polyedryxium |
Polyedryxium simplex
|
France |
Late Devonian |
|
Polyedryxium |
Polyedryxium talum
sp. nov. |
Tunisia |
Middle Devonian |
Late Devonian |
Polyedryxium |
Polyedryxium talum
sp. nov. |
Tunisia |
Middle Devonian |
Late Devonian |
Polyedryxium |
Polyedryxium talum
sp. nov. |
Algeria |
Early Devonian |
Late Devonian |
Polyedryxium |
Polyedryxium talum
|
Algeria |
Early Devonian |
Late Devonian |
Polyedryxium |
Polyedryxium tectum
|
Canada(Ontario) |
Early Devonian |
Middle Devonian |
Polyedryxium |
Polyedryxium tetrahedroide
|
Africa |
Silurian |
Devonian |
Polyedryxium |
Polyedryxium tetrahedroide
|
Nd |
Nd |
|
Polyedryxium |
Polyedryxium trifissile
sp. nov. |
Canada(Ontario) |
Early Devonian |
Middle Devonian |