Archaeozonotriletes |
Archaeozonotriletes variabilis
|
Canada |
Frasnian |
Famennian |
Archaeozonotriletes |
Archaeozonotriletes variabilis
|
Spitsbergen |
Givetian |
Frasnian |
Archaeozonotriletes |
Archaeozonotriletes variabilis
|
USSR(Russian Platform) |
Givetian |
Famennian |
Archaeozonotriletes |
Archaeozonotriletes variabilis
|
France |
Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes variabilis
|
Spain |
Frasnian |
|
Calyptosporites |
Calyptosporites microspinosus
|
Scotland |
Eifelian |
Givetian |
Calyptosporites |
Calyptosporites microspinosus
|
Spitsbergen |
Givetian |
Frasnian |
Calyptosporites |
Calyptosporites microspinosus
|
France |
Eifelian |
Givetian |
Calyptosporites |
Calyptosporites microspinosus
|
Spain |
Eifelian |
Givetian |
Calyptosporites |
Calyptosporites velatus
|
Africa(Sahara) |
Givetian |
|
Calyptosporites |
Calyptosporites velatus
|
England |
Givetian |
Frasnian |
Calyptosporites |
Calyptosporites velatus
|
Wales |
Givetian |
Frasnian |
Calyptosporites |
Calyptosporites velatus
|
Scotland |
Givetian |
|
Calyptosporites |
Calyptosporites velatus
|
Belgium |
Emsian |
Givetian |
Calyptosporites |
Calyptosporites velatus
|
Germany |
Emsian |
Givetian |
Calyptosporites |
Calyptosporites velatus
|
Canada |
Emsian |
Frasnian |
Calyptosporites |
Calyptosporites velatus
|
Spitsbergen |
Givetian |
Frasnian |