Eisenackitina |
Eisenackitina sp.B Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Eisenackitina |
Eisenackitina sp.C Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Exochoderma |
Exochoderma arca
|
Iowa |
Late Givetian |
|
Gorgonisphaeridium |
Gorgonisphaeridium adjunctum
sp. nov. |
Iowa |
Late Givetian |
|
Gorgonisphaeridium |
Gorgonisphaeridium parvispinosum
sp. nov. |
Iowa |
Late Givetian |
|
Hoegisphaera |
Hoegisphaera glabra
|
Iowa |
Late Givetian |
|
Leiosphaeridia |
Leiosphaeridia sp
|
Iowa |
Late Givetian |
|
Lophosphaeridium |
Lophosphaeridium ochthos
|
Iowa |
Late Givetian |
|
Luscinasphaera |
Luscinasphaera
|
Iowa |
Late Givetian |
|
Luscinasphaera |
Luscinasphaera indistincta
sp. nov. |
Iowa |
Late Givetian |
|
Micrhystridium |
Micrhystridium sp.A Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Micrhystridium |
Micrhystridium sp.B Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Micrhystridium |
Micrhystridium sp.C Wica.& Wood,1997
sp. nov. |
Iowa |
Late Givetian |
|
Multiplicisphaeridium |
Multiplicisphaeridium ramusculosum
|
Iowa |
Late Givetian |
|
Multiplicisphaeridium |
Multiplicisphaeridium segregatum
sp. nov. |
Iowa |
Late Givetian |
|
Muraticavea |
Muraticavea munificus
|
Iowa |
Late Givetian |
|
Navifusa |
Navifusa bacilla
|
Iowa |
Late Givetian |
|