Hystrichosphaeridium |
Hystrichosphaeridium siphoniphorum
|
Wyoming |
Cenomanian |
|
Lejeunia |
Lejeunia cretacea
|
Wyoming |
Albian |
Coniacian |
Litosphaeridium |
Litosphaeridium siphoniphorum
|
Wyoming |
Cenomanian |
|
Muderongia |
Muderongia sp.1
sp. nov. |
Wyoming |
Albian |
|
Muderongia |
Muderongia sp.2
sp. nov. |
Wyoming |
Albian |
|
Odontochitina |
Odontochitina operculata
|
Wyoming |
Albian |
Campanian |
Oligosphaeridium |
Oligosphaeridium complex
|
Wyoming |
Albian |
Santonian |
Ovoidinium |
Ovoidinium ostium
|
Wyoming |
Albian |
|
Palaeohystrichophora |
Palaeohystrichophora infusorioides
|
Wyoming |
Cenomanian |
Campanian |
Palaeohystrichophora |
Palaeohystrichophora sp.1
sp. nov. |
Wyoming |
Albian |
|
Palaeohystrichophora |
Palaeohystrichophora sp.2
sp. nov. |
Wyoming |
Cenomanian |
Coniacian |
Pterospermella |
Pterospermella aureolata
|
Wyoming |
Albian |
Coniacian |
Pterospermella |
Pterospermella australiensis
|
Wyoming |
Campanian |
|
Pterospermella |
Pterospermella eurypteris
|
Wyoming |
Albian |
Santonian |
Pterospermella |
Pterospermella hartii
|
Wyoming |
Albian |
Santonian |
Spinidinium |
Spinidinium vestitum
|
Wyoming |
Albian |
Early Cenomanian |
Spiniferites |
Spiniferites buccina
|
Wyoming |
Coniacian |
|