Triquitrites |
Triquitrites exiguus
|
Iowa |
Pennsylvanian |
|
Triquitrites |
Triquitrites minutus
|
Iowa |
Pennsylvanian |
|
Triquitrites |
Triquitrites protensus
|
Iowa |
Pennsylvanian |
|
Triquitrites |
Triquitrites sculptilis
|
Iowa |
Pennsylvanian |
|
Triquitrites |
Triquitrites subspinosus
|
Iowa |
Pennsylvanian |
|
Tuberculatosporites |
Tuberculatosporites robustus
|
Iowa |
Pennsylvanian |
|
Verrucosisporites |
Verrucosisporites donari
|
Iowa |
Pennsylvanian |
|
Verrucosisporites |
Verrucosisporites microtuberosus
|
Iowa |
Pennsylvanian |
|
Verrucosisporites |
Verrucosisporites sifati
|
Iowa |
Pennsylvanian |
|
Verrucosisporites |
Verrucosisporites verrucosus
|
Iowa |
Pennsylvanian |
|
Verrucososporites |
Verrucososporites facierugosus
|
Iowa |
Pennsylvanian |
|
Vestispora |
Vestispora fenestrata
|
Iowa |
Pennsylvanian |
|
Vestispora |
Vestispora laevigata
|
Iowa |
Pennsylvanian |
|
Vestispora |
Vestispora luminata
sp. nov. |
Iowa |
Pennsylvanian |
|
Vestispora |
Vestispora pseudoreticulata
|
Iowa |
Pennsylvanian |
|
Vestispora |
Vestispora reticulata
|
Iowa |
Pennsylvanian |
|
Vestispora |
Vestispora sp.1
sp. nov. |
Iowa |
Pennsylvanian |
|