Ancyrospora |
Ancyrospora loganii
|
Canada(Quebec) |
Nd |
|
Ancyrospora |
Ancyrospora melvillensis
|
Nd |
Late Givetian |
Frasnian |
Ancyrospora |
Ancyrospora melvillensis
|
Canada(Arctic) |
Nd |
|
Ancyrospora |
Ancyrospora nettersheimensis
|
Northern Hemisphere |
Late Emsian |
Early Eifelian |
Ancyrospora |
Ancyrospora nettersheimensis
|
W.Germany(Rhineland) |
Nd |
|
Aneurospora |
Aneurospora goensis
|
Nd |
Late Givetian |
Frasnian |
Aneurospora |
Aneurospora goensis
|
Canada(Arctic) |
Nd |
|
Aneurospora |
Aneurospora greggsii
|
Nd |
Late Givetian |
Early Tournaisian |
Aneurospora |
Aneurospora greggsii
|
Canada(Alberta) |
Nd |
|
Apiculatasporites |
Apiculatasporites microconus
|
Northern Hemisphere |
Emsian |
Givetian |
Apiculatasporites |
Apiculatasporites microconus
|
Scotland(Ross/Cromarty) |
Nd |
|
Apiculiretusispora |
Apiculiretusispora arenorugosa
|
Northern Hemisphere |
Siegenian |
Emsian |
Apiculiretusispora |
Apiculiretusispora arenorugosa
|
Canada(Quebec) |
Nd |
|
Apiculiretusispora |
Apiculiretusispora brandtii
|
Northern Hemisphere |
Siegenian |
Early Eifelian |
Apiculiretusispora |
Apiculiretusispora brandtii
|
Northern Hemisphere |
Emsian |
Givetian |
Apiculiretusispora |
Apiculiretusispora brandtii
|
England(Oxfordshire) |
Nd |
|
Apiculiretusispora |
Apiculiretusispora brandtii
|
W.Germany(Rhineland) |
Nd |
|