Oppilatala |
Oppilatala sparsa
|
Iowa |
Late Givetian |
|
Ozotobrachion |
Ozotobrachion furcillatus
|
Iowa |
Late Givetian |
|
Palacanthus |
Palacanthus ledanoisii
|
Iowa |
Late Givetian |
|
Polyedryxium |
Polyedryxium decorum
|
Iowa |
Late Givetian |
|
Polyedryxium |
Polyedryxium pharaone
|
Iowa |
Late Givetian |
|
Pterospermella |
Pterospermella reticulata
|
Iowa |
Late Givetian |
|
Solisphaeridium |
Solisphaeridium laevigatum
sp. nov. |
Iowa |
Late Givetian |
|
Sphaerochitina |
Sphaerochitina pilosa
|
Iowa |
Late Givetian |
|
Stellinium |
Stellinium comptum
|
Iowa |
Late Givetian |
|
Stellinium |
Stellinium micropolygonale
|
Iowa |
Late Givetian |
|
Tasmanites |
Tasmanites sp
|
Iowa |
Late Givetian |
|
Triangulina |
Triangulina alargada
|
Iowa |
Late Givetian |
|
Tunisphaeridium |
Tunisphaeridium tentaculaferum
|
Iowa |
Late Givetian |
|
Unellium |
Unellium winslowiae
|
Iowa |
Late Givetian |
|
Veryhachium |
Veryhachium arcarium
|
Iowa |
Late Givetian |
|
Veryhachium |
Veryhachium europaeum
|
Iowa |
Late Givetian |
|
Veryhachium |
Veryhachium pastore
|
Iowa |
Late Givetian |
|