Impletosphaeridium |
Impletosphaeridium pycnospinosum
|
W.Germany(N.Rhine) |
Middle Oligocene |
Late Oligocene |
Impletosphaeridium |
Impletosphaeridium rugosum
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium transfodum
|
Nd |
Nd |
|
Inversidinium |
Inversidinium caudatum
|
France |
Early Kimmeridgian |
|
Isabelidinium |
Isabelidinium acuminatum
|
Australia(W.Australia) |
Cenomanian |
Early Turonian |
Isabelidinium |
Isabelidinium amphiatum
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium bakeri
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium balmei
|
Australia(W.Australia) |
Turonian |
Middle Senonian |
Isabelidinium |
Isabelidinium belfastense
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium cooksoniae
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium cretaceum
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium delicatum
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium druggii
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium extremum
|
Australia(W.Australia) |
Albian |
Cenomanian |
Isabelidinium |
Isabelidinium gallium
|
France |
Late Albian |
|
Isabelidinium |
Isabelidinium glabrum
|
Nd |
Nd |
|
Isabelidinium |
Isabelidinium globosum
|
Nd |
Nd |
|