Columinisporites |
Columinisporites heyleri
|
France |
Early Autunian |
|
Columinisporites |
Columinisporites heyleri
|
Illinois |
Late Pennsylvanian |
|
Columinisporites |
Columinisporites ovalis
|
Illinois |
Pennsylvanian |
|
Columinisporites |
Columinisporites peppersi
sp. nov. |
France |
Early Autunian |
|
Extrapunctatosporis |
Extrapunctatosporis fabaeformis
|
Turkey |
Artinskian |
Kungurian |
Extrapunctatosporis |
Extrapunctatosporis microtuberosus
|
France |
Middle Stephanian |
|
Extrapunctatosporis |
Extrapunctatosporis microtuberosus
|
Turkey |
Permian |
|
Laevigatosporites |
Laevigatosporites maximus
|
USSR(Ukrainian SSR) |
Visean |
|
Laevigatosporites |
Laevigatosporites maximus
|
Germany |
Westphalian B |
|
Laevigatosporites |
Laevigatosporites maximus
|
France |
Stephanian |
Autunian |
Laevigatosporites |
Laevigatosporites maximus
|
USA |
Late Pennsylvanian |
|
Laevigatosporites |
Laevigatosporites perminutus
|
Poland |
Namurian A |
Westphalian D |
Laevigatosporites |
Laevigatosporites perminutus
|
Germany |
Westphalian B |
Westphalian C |
Laevigatosporites |
Laevigatosporites perminutus
|
France |
Stephanian |
Autunian |
Laevigatosporites |
Laevigatosporites perminutus
|
England(Gloucestershire) |
Westphalian D |
|
Laevigatosporites |
Laevigatosporites perminutus
|
England(Somerset) |
Westphalian D |
|
Laevigatosporites |
Laevigatosporites perminutus
|
England |
Westphalian D |
|