Grumosisporites |
Grumosisporites rugus
|
Iowa |
Pennsylvanian |
|
Cristatisporites |
Cristatisporites indignabundus
|
Iowa |
Pennsylvanian |
|
Radiizonates |
Radiizonates difformis
|
Iowa |
Pennsylvanian |
|
Cingulizonates |
Cingulizonates loricatus
|
Iowa |
Pennsylvanian |
|
Crassispora |
Crassispora annulata
sp. nov. |
Iowa |
Pennsylvanian |
|
Crassispora |
Crassispora kosankei
|
Iowa |
Pennsylvanian |
|
Cappasporites |
Cappasporites distortus
|
Iowa |
Pennsylvanian |
|
Densosporites |
Densosporites annulatus
|
Iowa |
Pennsylvanian |
|
Densosporites |
Densosporites irregularis
|
Iowa |
Pennsylvanian |
|
Densosporites |
Densosporites sphaerotriangularis
|
Iowa |
Pennsylvanian |
|
Densosporites |
Densosporites spinifer
|
Iowa |
Pennsylvanian |
|
Densosporites |
Densosporites triangularis
|
Iowa |
Pennsylvanian |
|
Lycospora |
Lycospora granulata
|
Iowa |
Pennsylvanian |
|
Lycospora |
Lycospora micropapillata
|
Iowa |
Pennsylvanian |
|
Lycospora |
Lycospora pellucida
|
Iowa |
Pennsylvanian |
|
Lycospora |
Lycospora rotunda
|
Iowa |
Pennsylvanian |
|
Lycospora |
Lycospora torquifer
|
Iowa |
Pennsylvanian |
|