Cyathochitina |
Cyathochitina sp.1
sp. nov. |
Iowa |
Late Ordovician |
|
Cyathochitina |
Cyathochitina sp.2
sp. nov. |
Oklahoma |
Middle Ordovician |
|
Cyathochitina |
Cyathochitina sp.3
sp. nov. |
Iowa |
Late Ordovician |
|
Desmochitina |
Desmochitina minor
|
Baltic |
Early Ordovician |
Late Ordovician |
Desmochitina |
Desmochitina minor
|
Baltic |
Middle Ordovician |
|
Desmochitina |
Desmochitina minor
|
Baltic |
Middle Ordovician |
Late Ordovician |
Desmochitina |
Desmochitina minor
|
Oklahoma |
Middle Ordovician |
|
Desmochitina |
Desmochitina minor
|
Iowa |
Late Ordovician |
|
Desmochitina |
Desmochitina minor
|
Oklahoma |
Middle Ordovician |
Late Ordovician |
Desmochitina |
Desmochitina minor
|
Iowa |
Late Ordovician |
|
Desmochitina |
Desmochitina monilis
sp. nov. |
Oklahoma |
Middle Ordovician |
Late Ordovician |
Gloeocapsamorpha |
Gloeocapsamorpha sp
|
Oklahoma |
Middle Ordovician |
|
Gloeocapsamorpha |
Gloeocapsamorpha sp
|
Oklahoma |
Middle Ordovician |
|
Hoegisphaera |
Hoegisphaera urticula
|
Iowa |
Late Ordovician |
|
Hoegisphaera |
Hoegisphaera urticula
sp. nov. |
Oklahoma |
Middle Ordovician |
Late Ordovician |
Rhabdochitina |
Rhabdochitina
|
Iowa |
Late Ordovician |
|
Rhabdochitina |
Rhabdochitina festuca
|
Oklahoma |
Middle Ordovician |
Late Ordovician |