Polyedryxium |
Polyedryxium lagoviense
|
Nd |
Late Famennian |
|
Polyedryxium |
Polyedryxium lelayii
|
Nd |
Middle Devonian |
|
Polyedryxium |
Polyedryxium membranaceum
|
Nd |
Devonian |
|
Polyedryxium |
Polyedryxium micropolygonale
|
Nd |
Frasnian |
|
Polyedryxium |
Polyedryxium minimum
|
Nd |
Devonian |
|
Polyedryxium |
Polyedryxium mirum
|
Nd |
Middle Devonian |
|
Polyedryxium |
Polyedryxium multifrons
|
Nd |
Devonian |
|
Polyedryxium |
Polyedryxium nasicum
|
Nd |
Frasnian |
|
Polyedryxium |
Polyedryxium neftelenicum
|
Nd |
Early Cambrian |
|
Polyedryxium |
Polyedryxium nudatum
|
Nd |
Devonian |
|
Polyedryxium |
Polyedryxium oppidum
|
Nd |
Early Frasnian |
|
Polyedryxium |
Polyedryxium pentagonale
|
Nd |
Middle Cambrian |
Late Cambrian |
Polyedryxium |
Polyedryxium pharaone
|
Nd |
Couvinian |
|
Polyedryxium |
Polyedryxium pharaone
|
Nd |
Nd |
|
Polyedryxium |
Polyedryxium pharaone
|
Nd |
Givetian |
|
Polyedryxium |
Polyedryxium pharaone
|
Nd |
Couvinian |
|
Polyedryxium |
Polyedryxium piveteauii
|
Nd |
Middle Devonian |
|