Spencerisporites |
Spencerisporites radiatus
|
Pennsylvania |
Namurian A |
Early Westphalian C |
Spencerisporites |
Spencerisporites radiatus
|
Turkey |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
Czechoslovakia |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
Poland |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
Germany |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
France |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
England |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
Scotland |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
Ireland |
Visean |
Stephanian A |
Spencerisporites |
Spencerisporites radiatus
|
Spain |
Visean |
Stephanian A |
Sporites |
Sporites cerebralis
|
Czechoslovakia |
Early Tournaisian |
Late Visean |
Sporites |
Sporites echinospinosus
|
Poland |
Westphalian A |
Westphalian D |
Sporites |
Sporites fumosus
|
Illinois |
Westphalian D |
|
Sporites |
Sporites michiganensis
|
Michigan |
Westphalian A |
Westphalian D |
Sporites |
Sporites plicatus
|
Illinois |
Westphalian D |
|
Sporites |
Sporites problematicus
|
Poland |
Westphalian D |
|
Sporites |
Sporites reniformis
|
USSR(Ukrainian SSR) |
Early Tournaisian |
Late Visean |