Granulatisporites |
Granulatisporites verrucosus
|
Iowa |
Late Namurian |
Westphalian A |
Grumosisporites |
Grumosisporites varioreticulatus
|
Iowa |
Namurian B |
Westphalian A |
Gulisporites |
Gulisporites torpidus
|
Iowa |
Late Namurian |
Westphalian A |
Hymenospora |
Hymenospora caperata
|
Iowa |
Namurian B |
Westphalian A |
Hymenospora |
Hymenospora multirugosa
|
Iowa |
Namurian B |
Westphalian A |
Hymenospora |
Hymenospora sp.1
sp. nov. |
Iowa |
Namurian B |
Westphalian A |
Illinites |
Illinites diversiformis
|
Iowa |
Namurian B |
Westphalian A |
Illinites |
Illinites unicus
|
Iowa |
Namurian B |
Westphalian A |
Knoxisporites |
Knoxisporites dissidius
|
Iowa |
Late Namurian |
Westphalian A |
Knoxisporites |
Knoxisporites seniradiatus
|
Iowa |
Late Namurian |
Westphalian A |
Knoxisporites |
Knoxisporites stephanophorus
|
Iowa |
Late Namurian |
Westphalian A |
Knoxisporites |
Knoxisporites triradiatus
|
Iowa |
Late Namurian |
Westphalian A |
Kosankeisporites |
Kosankeisporites elegans
|
Iowa |
Namurian B |
Westphalian A |
Laevigatosporites |
Laevigatosporites contactus
sp. nov. |
Iowa |
Namurian B |
Westphalian A |
Laevigatosporites |
Laevigatosporites desmoinesensis
|
Iowa |
Namurian B |
Westphalian A |
Laevigatosporites |
Laevigatosporites maximus
|
Iowa |
Namurian B |
Westphalian A |
Laevigatosporites |
Laevigatosporites medius
|
Iowa |
Namurian B |
Westphalian A |