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 |
Paucibucina |
Paucibucina sp.2
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Pediastrum |
Pediastrum bidentulum
|
China(Hopei) |
Late Oligocene |
|
Pediastrum |
Pediastrum boryanum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Pediastrum |
Pediastrum boryanum
|
China(Hopei) |
Oligocene |
|
Pediastrum |
Pediastrum boryanum
|
China(Hopei) |
Late Eocene |
Middle Oligocene |
Pediastrum |
Pediastrum duplex
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Pediastrum |
Pediastrum sp
|
China(Hopei) |
Nd |
|
Pentagonum |
Pentagonum huanghuaense
sp. nov. |
China(Hopei) |
Late Eocene |
Late Oligocene |
Pentagonum |
Pentagonum sp
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Porusphaera |
Porusphaera
|
China(Hopei) |
Oligocene |
|
Porusphaera |
Porusphaera bellatula
sp. nov. |
China(Hopei) |
Oligocene |
|
Porusphaera |
Porusphaera sp.1
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Porusphaera |
Porusphaera sp.2
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |