Gonyaulacysta |
Gonyaulacysta orthoceras
|
Wyoming |
Campanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
sp. nov. |
Wyoming |
Campanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
Wyoming |
Campanian |
|
Oligosphaeridium |
Oligosphaeridium complex
sp. nov. |
Wyoming |
Campanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium complex
|
Wyoming |
Campanian |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
sp. nov. |
Wyoming |
Campanian |
|
Tanyosphaeridium |
Tanyosphaeridium variecalamum
|
Wyoming |
Campanian |
|
Eisenackia |
Eisenackia brevivallata
sp. nov. |
Wyoming |
Campanian |
|
Odontochitina |
Odontochitina operculata
sp. nov. |
Wyoming |
Campanian |
|
Odontochitina |
Odontochitina silicorum
|
Wyoming |
Campanian |
|
Odontochitina |
Odontochitina striatoperforata
|
Wyoming |
Campanian |
|
Spiniferites |
Spiniferites ramosus
|
Wyoming |
Campanian |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
Wyoming |
Campanian |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
Wyoming |
Campanian |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Wyoming |
Campanian |
|
Alterbia |
Alterbia acutula
sp. nov. |
Wyoming |
Campanian |
|
Alterbia |
Alterbia dictyon
sp. nov. |
Wyoming |
Campanian |
|