Cirratriradites |
Cirratriradites solaris
|
Spitsbergen |
Visean |
|
Convolutispora |
Convolutispora vermiformis
|
Africa |
Givetian |
Frasnian |
Convolutispora |
Convolutispora vermiformis
|
Spitsbergen |
Strunian |
Tournaisian |
Densosporites |
Densosporites bialatus
|
Spitsbergen |
Tournaisian |
Visean |
Densosporites |
Densosporites devonicus
|
Africa |
Givetian |
|
Densosporites |
Densosporites devonicus
|
Scotland |
Eifelian |
Givetian |
Diatomozonotriletes |
Diatomozonotriletes saetosus
|
Spitsbergen |
Tournaisian |
Visean |
Emphanisporites |
Emphanisporites annulatus
|
Canada |
Emsian |
Eifelian |
Emphanisporites |
Emphanisporites annulatus
|
Africa |
Eifelian |
|
Emphanisporites |
Emphanisporites erraticus
|
Canada |
Emsian |
Eifelian |
Emphanisporites |
Emphanisporites erraticus
|
Africa |
Frasnian |
|
Emphanisporites |
Emphanisporites erraticus
|
Germany |
Givetian |
|
Emphanisporites |
Emphanisporites rotatus
|
Canada |
Emsian |
Eifelian |
Emphanisporites |
Emphanisporites rotatus
|
Africa |
Givetian |
Famennian |
Emphanisporites |
Emphanisporites rotatus
|
Scotland |
Givetian |
|
Emphanisporites |
Emphanisporites rotatus
|
USSR |
Eifelian |
|
Hystricosporites |
Hystricosporites
|
Canada |
Frasnian |
Strunian |