Apiculatisporis |
Apiculatisporis
|
Illinois |
Givetian |
|
Apiculatisporis |
Apiculatisporis sp
|
Algeria |
Siegenian |
|
Apiculatisporites |
Apiculatisporites microconus
|
W.Germany |
Eifelian |
|
Apiculiretusispora |
Apiculiretusispora brandtii
|
Belgium |
Early Givetian |
|
Apiculiretusispora |
Apiculiretusispora brandtii
|
W.Germany |
Eifelian |
|
Apiculiretusispora |
Apiculiretusispora synorea
|
Wales |
Ludlovian |
|
Archaeoperisaccus |
Archaeoperisaccus
|
USSR(Russian Platform) |
Middle Frasnian |
Late Frasnian |
Archaeoperisaccus |
Archaeoperisaccus
|
Canada(NWT) |
Middle Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus oblongus
|
Canada(Arctic) |
Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus opiparus
|
Canada(Arctic) |
Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus optivus
|
Canada(Arctic) |
Middle Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus scabratus
|
Canada(Arctic) |
Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes
|
Spitsbergen |
Emsian |
Eifelian |
Archaeozonotriletes |
Archaeozonotriletes chulus
|
Wales |
Wenlockian |
Downtonian |
Archaeozonotriletes |
Archaeozonotriletes chulus
|
Canada(Ontario) |
Gedinnian |
Early Siegenian |
Archaeozonotriletes |
Archaeozonotriletes chulus
|
Wales |
Dittonian |
|
Archaeozonotriletes |
Archaeozonotriletes chulus
|
Wales |
Downtonian |
|