Punctatisporites |
Punctatisporites fenestratus
|
Iowa |
Desmoinesian |
|
Punctatisporites |
Punctatisporites latigranifer
|
Iowa |
Desmoinesian |
|
Punctatisporites |
Punctatisporites obliquus
|
Iowa |
Desmoinesian |
|
Punctatisporites |
Punctatisporites provectus
|
Iowa |
Desmoinesian |
|
Punctatisporites |
Punctatisporites quaesitus
|
Iowa |
Desmoinesian |
|
Punctatisporites |
Punctatisporites sulcatus
|
Iowa |
Desmoinesian |
|
Granulatisporites |
Granulatisporites granularis
|
Iowa |
Desmoinesian |
|
Granulatisporites |
Granulatisporites spinosus
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites desmoinesensis
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites globosus
sp. nov. |
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites medius
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites minimus
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites minutus
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites ovalis
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites punctatus
|
Iowa |
Desmoinesian |
|
Laevigatosporites |
Laevigatosporites robustus
|
Iowa |
Desmoinesian |
|
Cirratriradites |
Cirratriradites annulatus
|
Iowa |
Desmoinesian |
|