Acritarch |
Acritarch sp.A
sp. nov. |
Iowa |
Late Givetian |
|
Acritarch |
Acritarch sp.A Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Ammonidium |
Ammonidium iowaensis
sp. nov. |
Iowa |
Late Givetian |
|
Ancyrochitina |
Ancyrochitina cornigera
|
Iowa |
Late Givetian |
|
Ancyrochitina |
Ancyrochitina fruiticosa
sp. nov. |
Iowa |
Late Givetian |
|
Angochitina |
Angochitina capillata
|
Iowa |
Late Givetian |
|
Angochitina |
Angochitina devonica
|
Iowa |
Late Givetian |
|
Angochitina |
Angochitina globosa
|
Iowa |
Late Givetian |
|
Angochitina |
Angochitina milanensis
|
Iowa |
Late Givetian |
|
Angochitina |
Angochitina mourai
|
Iowa |
Late Givetian |
|
Conochitina |
Conochitina sp. Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Cymatiosphaera |
Cymatiosphaera cladora
sp. nov. |
Iowa |
Late Givetian |
|
Cymatiosphaera |
Cymatiosphaera winderi
|
Iowa |
Late Givetian |
|
Daillydium |
Daillydium pentaster
|
Iowa |
Late Givetian |
|
Dictyotidium |
Dictyotidium variatum
|
Iowa |
Late Givetian |
|
Duvernaysphaera |
Duvernaysphaera tenuicingulata
|
Iowa |
Late Givetian |
|
Eisenackitina |
Eisenackitina sp.A Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|