Impletosphaeridium |
Impletosphaeridium liaoningense
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Impletosphaeridium |
Impletosphaeridium oblongatum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Impletosphaeridium |
Impletosphaeridium tianjinense
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Laciniadinium |
Laciniadinium
|
Nd |
Nd |
|
Laciniadinium |
Laciniadinium minutum
|
China(Hopei) |
Late Eocene |
Early Oligocene |
Lacunodinium |
Lacunodinium
|
Nd |
Nd |
|
Mirificysta |
Mirificysta
|
Nd |
Nd |
|
Mirificysta |
Mirificysta lineata
|
Nd |
Nd |
|
Parabohaidina |
Parabohaidina
|
Nd |
Nd |
|
Paraireiana |
Paraireiana
|
Nd |
Nd |
|
Paraireiana |
Paraireiana sinensis
|
China(Sinkiang Uighur) |
Paleocene |
Eocene |
Paucibucina |
Paucibucina
|
Nd |
Nd |
|
Paucibucina |
Paucibucina dongyingensis
|
Nd |
Nd |
|
Paucibucina |
Paucibucina liaoningensis
|
Nd |
Nd |
|
Paucibucina |
Paucibucina simplex
|
Nd |
Nd |
|
Prominangularia |
Prominangularia
|
Nd |
Nd |
|
Prominangularia |
Prominangularia dongyingensis
|
Nd |
Nd |
|