Ancyrospora |
Ancyrospora ampulla
|
Canada(Arctic) |
Middle Givetian |
|
Ancyrospora |
Ancyrospora ancyrea
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Ancyrospora |
Ancyrospora angulata
|
Canada(Arctic) |
Eifelian |
|
Ancyrospora |
Ancyrospora eurypterota
|
Canada(Arctic) |
Eifelian |
|
Ancyrospora |
Ancyrospora kedoae
|
Canada(Arctic) |
Eifelian |
|
Ancyrospora |
Ancyrospora loganii
|
Canada(Arctic) |
Eifelian |
|
Ancyrospora |
Ancyrospora longispinosa
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Ancyrospora |
Ancyrospora nettersheimensis
|
Canada(Arctic) |
Eifelian |
|
Apiculatasporites |
Apiculatasporites brevidenticulatus
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Apiculatasporites |
Apiculatasporites brevidenticulatus
|
USSR(Bashkir ASSR) |
Givetian |
|
Apiculatasporites |
Apiculatasporites microconus
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Apiculatasporites |
Apiculatasporites perpusillus
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Apiculatisporis |
Apiculatisporis microconus
|
Canada(Arctic) |
Givetian |
|
Apiculatisporis |
Apiculatisporis microechinatus
|
Canada(Arctic) |
Eifelian |
Givetian |
Apiculiretusispora |
Apiculiretusispora densiconata
|
Canada(Arctic) |
Eifelian |
Middle Givetian |
Apiculiretusispora |
Apiculiretusispora leberidos
sp. nov. |
Canada(Arctic) |
Eifelian |
Middle Givetian |
Apiculiretusispora |
Apiculiretusispora microconus
|
Canada(Arctic) |
Eifelian |
Givetian |