Songiella |
Songiella
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Bohaidina |
Bohaidina granulata
|
China(Hopei) |
Oligocene |
|
Prominangularia |
Prominangularia granulata
|
China(Hopei) |
Oligocene |
|
Songiella |
Songiella huanghuaensis
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Bipolaribucina |
Bipolaribucina huanghuaensis
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Prominangularia |
Prominangularia laevigata
|
China(Hopei) |
Oligocene |
|
Bohaidina |
Bohaidina laevigata
|
China(Hopei) |
Oligocene |
|
Parabohaidina |
Parabohaidina laevigata
|
China(Hopei) |
Oligocene |
|
Conicoidium |
Conicoidium laevigatum
|
China(Hopei) |
Oligocene |
|
Parabohaidina |
Parabohaidina tuberculata
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Conicoidium |
Conicoidium tuberculatum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Parabohaidina |
Parabohaidina granulata
|
China(Kwangsi) |
Middle Oligocene |
Early Miocene |
Conicoidium |
Conicoidium granulatum
|
China(Kwangsi) |
Middle Oligocene |
Early Miocene |
Achilleodinium |
Achilleodinium sp. Sun,1994
sp. nov. |
China(Liaoning) |
Eocene |
|
Bohaidina |
Bohaidina rugosa
|
China(Liaoning) |
Eocene |
|
Prominangularia |
Prominangularia micirugosa
|
China(Liaoning) |
Eocene |
|
Bohaidina |
Bohaidina tuberculata
sp. nov. |
China(Liaoning) |
Eocene |
|