Hystrichosphaeridium |
Hystrichosphaeridium sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Oligosphaeridium |
Oligosphaeridium membranaceum
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Oligosphaeridium |
Oligosphaeridium minus
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Oligosphaeridium |
Oligosphaeridium sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Paucibucina |
Paucibucina
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Paucibucina |
Paucibucina dongyingensis
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Paucibucina |
Paucibucina liaoningensis
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Paucibucina |
Paucibucina simplex
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Paucibucina |
Paucibucina sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Prolixosphaeridium |
Prolixosphaeridium sp.1
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Chiropteridium |
Chiropteridium sp
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cyclonephelium |
Cyclonephelium combinatum
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cyclonephelium |
Cyclonephelium regulatum
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cyclonephelium |
Cyclonephelium variatum
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cyclonephelium |
Cyclonephelium sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichosphaera |
Hystrichosphaera sp.1
sp. nov. |
China(Hopei) |
Late Eocene |
Early Oligocene |
Deflandrea |
Deflandrea apicidentata
sp. nov. |
China(Hopei) |
Late Eocene |
Early Oligocene |