Hexagonifera |
Hexagonifera laticaudata
|
Nd |
Santonian |
|
Hexagonifera |
Hexagonifera vermiculata
|
Australia(Victoria) |
Senonian |
|
Hystrichogonyaulax |
Hystrichogonyaulax coreoides
|
W.Germany(N.Rhine) |
Middle Oligocene |
|
Hystrichogonyaulax |
Hystrichogonyaulax polytrix
|
W.Germany(N.Rhine) |
Middle Oligocene |
|
Inversidinium |
Inversidinium exilimurum
|
Nd |
Late Paleocene |
|
Isabelia |
Isabelia
|
Australia |
Campanian |
Early Maastrichtian |
Isabelia |
Isabelia amphiata
|
Canada(NWT) |
Campanian |
Maastrichtian |
Isabelia |
Isabelia bakeri
|
Australia(Victoria) |
Paleocene |
Early Eocene |
Isabelia |
Isabelia belfastensis
|
Australia(Victoria) |
Senonian |
|
Isabelia |
Isabelia conorata
|
Australia(Victoria) |
Early Paleocene |
Middle Paleocene |
Isabelia |
Isabelia cooksoniae
|
Germany |
Senonian |
|
Isabelia |
Isabelia cretacea
|
Australia(Victoria) |
Late Cretaceous |
|
Isabelia |
Isabelia dakotaensis
|
South Dakota |
Paleocene |
|
Isabelia |
Isabelia delicata
|
Romania |
Early Eocene |
|
Isabelia |
Isabelia druggii
|
Australia(Victoria) |
Early Paleocene |
Middle Paleocene |
Isabelia |
Isabelia gambangensis
|
Australia(W.Australia) |
Senonian |
|
Isabelia |
Isabelia glabra
|
Australia(W.Australia) |
Albian |
Cenomanian |