Cleistosphaeridium |
Cleistosphaeridium diversispinosum
|
China(Shantung) |
Middle Oligocene |
|
Cleistosphaeridium |
Cleistosphaeridium regulatum
sp. nov. |
China(Shantung) |
Middle Oligocene |
|
Comasphaeridium |
Comasphaeridium minutum
|
China(Shantung) |
Middle Oligocene |
|
Conicoidium |
Conicoidium sp
|
China(Shantung) |
Middle Oligocene |
|
Filisphaeridium |
Filisphaeridium baculatum
|
China(Shantung) |
Middle Oligocene |
|
Filisphaeridium |
Filisphaeridium granulatum
sp. nov. |
China(Shantung) |
Middle Oligocene |
|
Granodiscus |
Granodiscus staplini
|
China(Shantung) |
Middle Oligocene |
|
Leiosphaeridia |
Leiosphaeridia taxodiforma
|
China(Shantung) |
Middle Oligocene |
|
Oligosphaeridium |
Oligosphaeridium sp
|
China(Shantung) |
Middle Oligocene |
|
Parabohaidina |
Parabohaidina laevigata
|
China(Shantung) |
Middle Oligocene |
|
Paucibucina |
Paucibucina simplex
|
China(Shantung) |
Middle Oligocene |
|
Rhombodella |
Rhombodella tubiforma
|
China(Shantung) |
Middle Oligocene |
|
Rhombodella |
Rhombodella variabilis
|
China(Shantung) |
Middle Oligocene |
|
Tenua |
Tenua bellula
|
China(Shantung) |
Middle Oligocene |
|
Tenua |
Tenua bifidis
|
China(Shantung) |
Middle Oligocene |
|
Tenua |
Tenua biornata
|
China(Shantung) |
Middle Oligocene |
|