Acanthotriletes |
Acanthotriletes multisetus
|
Scotland |
Givetian |
|
Acinosporites |
Acinosporites acanthomammillatus
|
Scotland |
Late Eifelian |
|
Acinosporites |
Acinosporites acanthomammillatus
|
Germany |
Late Emsian |
|
Acinosporites |
Acinosporites acanthomammillatus
|
W.Germany |
Eifelian |
|
Acinosporites |
Acinosporites apiculatus
|
W.Germany |
Eifelian |
|
Acinosporites |
Acinosporites macrospinosus
|
Scotland |
Late Eifelian |
|
Acritarchs |
Acritarchs
|
Algeria |
Gedinnian |
|
Ambitisporites |
Ambitisporites dilutus
|
Wales |
Wenlockian |
Downtonian |
Anapiculatisporites |
Anapiculatisporites petilus
|
W.Germany |
Eifelian |
|
Ancyrospora |
Ancyrospora
|
Spitsbergen |
Givetian |
|
Ancyrospora |
Ancyrospora
|
Australia |
Frasnian |
|
Ancyrospora |
Ancyrospora
|
Australia(W.Australia) |
Frasnian |
|
Ancyrospora |
Ancyrospora
|
Canada(Arctic) |
Frasnian |
|
Ancyrospora |
Ancyrospora
|
Canada(NWT) |
Middle Frasnian |
|
Ancyrospora |
Ancyrospora
|
France(Pas-de-Calais) |
Frasnian |
|
Ancyrospora |
Ancyrospora ancyrea
|
Scotland |
Givetian |
|
Ancyrospora |
Ancyrospora ancyrea
|
Canada |
Late Emsian |
|