Ancyrospora |
Ancyrospora
|
Wales |
Famennian |
Tournaisian |
Ancyrospora |
Ancyrospora
|
Canada |
Frasnian |
|
Ancyrospora |
Ancyrospora
|
France |
Tournaisian |
|
Ancyrospora |
Ancyrospora
|
Spain |
Tournaisian |
|
Ancyrospora |
Ancyrospora ancyrea
|
England |
Emsian |
Frasnian |
Ancyrospora |
Ancyrospora ancyrea
|
Wales |
Emsian |
Frasnian |
Ancyrospora |
Ancyrospora ancyrea
|
Scotland |
Eifelian |
Givetian |
Ancyrospora |
Ancyrospora ancyrea
|
Belgium |
Eifelian |
Givetian |
Ancyrospora |
Ancyrospora ancyrea
|
Germany |
Eifelian |
Givetian |
Ancyrospora |
Ancyrospora ancyrea
|
Canada |
Eifelian |
|
Ancyrospora |
Ancyrospora ancyrea
|
USSR(Russian Platform) |
Frasnian |
|
Ancyrospora |
Ancyrospora ancyrea
|
Africa |
Givetian |
Frasnian |
Ancyrospora |
Ancyrospora ancyrea
|
Belgium |
Emsian |
Givetian |
Ancyrospora |
Ancyrospora ancyrea
|
Germany |
Emsian |
Givetian |
Ancyrospora |
Ancyrospora grandispinosa
|
England |
Frasnian |
|
Ancyrospora |
Ancyrospora grandispinosa
|
Wales |
Frasnian |
|
Ancyrospora |
Ancyrospora grandispinosa
|
Scotland |
Eifelian |
Givetian |