Cleistosphaeridium |
Cleistosphaeridium centrocarpum
|
Australia(Victoria) |
Miocene |
|
Cleistosphaeridium |
Cleistosphaeridium centrocarpum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium commixtum
sp. nov. |
China(Hopei) |
Late Eocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium diversispinosum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium huguoniotii
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium minus
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium panshanense
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium sp. Jiab.,1978
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Codoniella |
Codoniella sp
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Comasphaeridium |
Comasphaeridium minutum
sp. nov. |
China(Hopei) |
Oligocene |
|
Comasphaeridium |
Comasphaeridium spinatum
sp. nov. |
China(Hopei) |
Late Eocene |
Oligocene |
Concentricystes |
Concentricystes membranaceus
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Concentricystes |
Concentricystes panshanensis
sp. nov. |
China(Hopei) |
Oligocene |
|
Concentricystes |
Concentricystes tenellus
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Conicoidium |
Conicoidium
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Conicoidium |
Conicoidium granorugosum
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Conicoidium |
Conicoidium laevigatum
sp. nov. |
China(Hopei) |
Oligocene |
|