Verrucosisporites |
Verrucosisporites microverrucosus
|
Iowa |
Morrowan |
Desmoinesian |
Verrucosisporites |
Verrucosisporites morulatus
|
Iowa |
Morrowan |
Atokan |
Verrucosisporites |
Verrucosisporites nitidus
|
Iowa |
Morrowan |
|
Verrucosisporites |
Verrucosisporites papillosus
|
Iowa |
Morrowan |
|
Verrucosisporites |
Verrucosisporites rudis
|
Nd |
Nd |
|
Verrucosisporites |
Verrucosisporites sifati
|
Iowa |
Middle Pennsylvanian |
|
Verrucosisporites |
Verrucosisporites verrucosus
|
Iowa |
Middle Pennsylvanian |
|
Verrucososporites |
Verrucososporites abditus
|
Iowa |
Morrowan |
Desmoinesian |
Verrucososporites |
Verrucososporites facierugosus
|
Iowa |
Middle Pennsylvanian |
|
Verrucososporites |
Verrucososporites papillosus
|
Iowa |
Morrowan |
|
Vesicaspora |
Vesicaspora saarensis
|
Iowa |
Middle Pennsylvanian |
|
Vesicaspora |
Vesicaspora wilsonii
|
Iowa |
Desmoinesian |
|
Vesicaspora |
Vesicaspora wilsonii
|
Iowa |
Desmoinesian |
Early Missourian |
Vestispora |
Vestispora clara
|
Iowa |
Middle Pennsylvanian |
|
Vestispora |
Vestispora clara
|
France(Lorraine) |
Early Stephanian |
|
Vestispora |
Vestispora costata
|
Iowa |
Morrowan |
Desmoinesian |
Vestispora |
Vestispora fenestrata
|
Iowa |
Middle Pennsylvanian |
|