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 |
Conosphaeridium |
Conosphaeridium sp
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cordosphaeridium |
Cordosphaeridium floripes
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cordosphaeridium |
Cordosphaeridium cantharellus
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cordosphaeridium |
Cordosphaeridium sp. Jiab.,1978
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Coronifera |
Coronifera caperata
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Coronifera |
Coronifera ovata
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Coronifera |
Coronifera sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichokolpoma |
Hystrichokolpoma unispinum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichokolpoma |
Hystrichokolpoma sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichokolpoma |
Hystrichokolpoma sp.2
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichosphaeridium |
Hystrichosphaeridium choanophorum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichosphaeridium |
Hystrichosphaeridium patulum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |