Ancyrochitina |
Ancyrochitina ancyrea
|
Baltic |
Silurian |
|
Ancyrochitina |
Ancyrochitina ancyrea
|
Iowa |
Late Ordovician |
|
Ancyrochitina |
Ancyrochitina ancyrea
|
Oklahoma |
Middle Ordovician |
|
Ancyrochitina |
Ancyrochitina sp
|
Oklahoma |
Middle Ordovician |
|
Ancyrochitina |
Ancyrochitina sp.1
sp. nov. |
Iowa |
Late Ordovician |
|
Ancyrochitina |
Ancyrochitina sp.2
sp. nov. |
Iowa |
Late Ordovician |
|
Angochitina |
Angochitina oklahomaensis
sp. nov. |
Oklahoma |
Middle Ordovician |
Late Ordovician |
Calpichitina |
Calpichitina scabiosa
|
Iowa |
Late Ordovician |
|
Calpichitina |
Calpichitina scabiosa
|
Oklahoma |
Late Ordovician |
|
Calpichitina |
Calpichitina scabiosa
|
Iowa |
Late Ordovician |
|
Conochitina |
Conochitina cactacea
|
Baltic |
Early Ordovician |
Late Ordovician |
Conochitina |
Conochitina cactacea
|
Iowa |
Late Ordovician |
|
Conochitina |
Conochitina cactacea
|
Europe |
Early Ordovician |
Late Ordovician |
Conochitina |
Conochitina cactacea
|
Oklahoma |
Late Ordovician |
|
Conochitina |
Conochitina cactacea
|
Oklahoma |
Late Ordovician |
|
Conochitina |
Conochitina cactacea
|
Oklahoma |
Middle Ordovician |
|
Conochitina |
Conochitina gracilis
sp. nov. |
Oklahoma |
Middle Ordovician |
|