Apteodinium |
Apteodinium sp
|
Arkansas |
Late Campanian |
|
Chatangiella |
Chatangiella victoriensis
|
Arkansas |
Late Campanian |
|
Dinogymnium |
Dinogymnium acuminatum
|
Arkansas |
Late Campanian |
|
Dinogymnium |
Dinogymnium digitus
|
Arkansas |
Late Campanian |
|
Dinogymnium |
Dinogymnium euclaense
|
Arkansas |
Late Campanian |
|
Dinogymnium |
Dinogymnium heterocostatum
|
Arkansas |
Late Campanian |
|
Exochosphaeridium |
Exochosphaeridium phragmites
|
Arkansas |
Late Campanian |
|
Isabelidinium |
Isabelidinium cooksoniae
|
Arkansas |
Late Campanian |
|
Odontochitina |
Odontochitina operculata
|
Arkansas |
Late Campanian |
|
Oligosphaeridium |
Oligosphaeridium complex
|
Arkansas |
Late Campanian |
|
Palaeostomocystis |
Palaeostomocystis chytra
|
Arkansas |
Late Campanian |
|
Spiniferites |
Spiniferites ramosus
|
Arkansas |
Late Campanian |
|
Corollina |
Corollina torosa
|
Arkansas |
Late Campanian |
|
Rugubivesiculites |
Rugubivesiculites convolutus
|
Arkansas |
Late Campanian |
|
Leptodinium |
Leptodinium sp
|
Arkansas |
Late Campanian |
|
Leptodinium |
Leptodinium victorianum
|
Arkansas |
Late Campanian |
|
Odontochitina |
Odontochitina costata
|
Arkansas |
Late Campanian |
|