Hystricosporites |
Hystricosporites porrectus
|
Spitsbergen |
Givetian |
|
Hystricosporites |
Hystricosporites sp
|
Canada(Arctic) |
Givetian |
|
Leiotriletes |
Leiotriletes pagius
|
Germany |
Early Emsian |
|
Leiotriletes |
Leiotriletes parvus
|
Spitsbergen |
Late Downtonian |
Dittonian |
Lophozonotriletes |
Lophozonotriletes
|
Canada(NWT) |
Middle Frasnian |
|
Lophozonotriletes |
Lophozonotriletes crassus
|
Canada(Arctic) |
Famennian |
|
Lophozonotriletes |
Lophozonotriletes cristifer
|
Canada(Arctic) |
Famennian |
|
Lophozonotriletes |
Lophozonotriletes dentatus
|
Canada(Arctic) |
Famennian |
|
Lophozonotriletes |
Lophozonotriletes macrogrumosus
|
Canada(Arctic) |
Famennian |
|
Lophozonotriletes |
Lophozonotriletes rarituberculatus
|
Canada(Arctic) |
Famennian |
|
Lycospora |
Lycospora
|
Illinois |
Givetian |
|
Lycospora |
Lycospora culpa
|
Spitsbergen |
Siegenian |
|
Lycospora |
Lycospora pallida
|
France(Maine-et-Loire) |
Middle Siegenian |
Late Siegenian |
Nikitinsporites |
Nikitinsporites
|
Canada(Arctic) |
Frasnian |
|
Perforosporites |
Perforosporites sp
|
Algeria |
Siegenian |
|
Perotrilites |
Perotrilites
|
Wales |
Downtonian |
|
Perotrilites |
Perotrilites bifurcatus
|
Belgium |
Early Givetian |
|