Onondagella |
Onondagella asymmetrica
|
Algeria |
Siegenian |
Emsian |
Onondagella |
Onondagella cylindrica
|
Algeria |
Ludlovian |
Gedinnian |
Onondagella |
Onondagella deunffii
|
Algeria |
Ludlovian |
Gedinnian |
Ozotobrachion |
Ozotobrachion dactylos
|
Algeria |
Gedinnian |
Siegenian |
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Algeria |
Arenigian |
Ashgillian |
Polyedryxium |
Polyedryxium decorum
|
Algeria |
Emsian |
Frasnian |
Polyedryxium |
Polyedryxium decorum
|
Algeria |
Couvinian |
Famennian |
Polyedryxium |
Polyedryxium talum
|
Algeria |
Givetian |
Frasnian |
Polygonium |
Polygonium gracile
|
Algeria |
Ludlovian |
Gedinnian |
Polygonium |
Polygonium spinosum
sp. nov. |
Algeria |
Arenigian |
Ludlovian |
Polyplanifer |
Polyplanifer cruciferum
|
Algeria |
Ludlovian |
|
Priscogalea |
Priscogalea cortinula
|
Algeria |
Tremadocian |
|
Priscogalea |
Priscogalea striatula
|
Algeria |
Middle Tremadocian |
Early Arenigian |
Priscotheca |
Priscotheca raia
|
Algeria |
Middle Tremadocian |
Arenigian |
Priscotheca |
Priscotheca timofeevii
|
Algeria |
Tremadocian |
Arenigian |
Priscotheca |
Priscotheca tumida
|
Algeria |
Tremadocian |
Arenigian |
Pterospermopsis |
Pterospermopsis circumstriata
|
Algeria |
Emsian |
|