Trigonopyxidia |
Trigonopyxidia microreticulata
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Codoniella |
Codoniella sp
|
China(Hopei) |
Early Oligocene |
Middle 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 |
|
Palaeostomocystis |
Palaeostomocystis laevigata
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Palaeostomocystis |
Palaeostomocystis minor
sp. nov. |
China(Hopei) |
Late Eocene |
Middle Oligocene |
Palaeostomocystis |
Palaeostomocystis scabrata
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Palaeostomocystis |
Palaeostomocystis sp
|
China(Hopei) |
Nd |
|
Tectocorpidium |
Tectocorpidium
|
China(Hopei) |
Late Eocene |
|
Tectocorpidium |
Tectocorpidium rimosum
sp. nov. |
China(Hopei) |
Late Eocene |
|
Tectocorpidium |
Tectocorpidium angustilimbatum
sp. nov. |
China(Hopei) |
Late Eocene |
Late Oligocene |
Tectocorpidium |
Tectocorpidium sp
|
China(Hopei) |
Late Oligocene |
|
Bohaidina |
Bohaidina retirugosa
sp. nov. |
China(Hopei) |
Late Eocene |
Oligocene |
Bohaidina |
Bohaidina rivularisa
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Bohaidina |
Bohaidina rugosa
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Conicoidium |
Conicoidium sp.2
sp. nov. |
China(Hopei) |
Early Oligocene |
Middle Oligocene |