Leiosphaeridia |
Leiosphaeridia hyalina
|
China(Hopei) |
Late Eocene |
Oligocene |
Leiosphaeridia |
Leiosphaeridia similis
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Leiosphaeridia |
Leiosphaeridia taxodiforma
sp. nov. |
China(Hopei) |
Late Eocene |
Oligocene |
Leiosphaeridia |
Leiosphaeridia sp
|
China(Hopei) |
Late Eocene |
Oligocene |
Rugasphaera |
Rugasphaera
|
China(Hopei) |
Late Oligocene |
|
Rugasphaera |
Rugasphaera corrugis
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Rugasphaera |
Rugasphaera micirugis
sp. nov. |
China(Hopei) |
Oligocene |
|
Rugasphaera |
Rugasphaera minor
sp. nov. |
China(Hopei) |
Late Eocene |
Early Oligocene |
Rugasphaera |
Rugasphaera operculata
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Rugasphaera |
Rugasphaera sp.1
sp. nov. |
China(Hopei) |
Late Oligocene |
|
Verrucosphaera |
Verrucosphaera tuberculata
sp. nov. |
China(Hopei) |
Oligocene |
|
Verrucosphaera |
Verrucosphaera verrucosa
sp. nov. |
China(Hopei) |
Oligocene |
|
Verrucosphaera |
Verrucosphaera sp
|
China(Hopei) |
Late 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 |
Cymatiosphaera |
Cymatiosphaera sp
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |