Hystrichosphaeropsis |
Hystrichosphaeropsis quasicribrata
|
W.Germany |
Late Cretaceous |
|
Hystrichosphaeropsis |
Hystrichosphaeropsis rectangularis
|
England(Hampshire) |
Late Eocene |
|
Impagidinium |
Impagidinium aculeatum
|
Caribbean |
Pleistocene |
|
Impagidinium |
Impagidinium alectrolophum
|
England |
Middle Barremian |
|
Impagidinium |
Impagidinium aquaeductum
|
Denmark |
Middle Miocene |
|
Impagidinium |
Impagidinium aspinatum
|
Australia |
Paleocene |
|
Impagidinium |
Impagidinium brevisulcatum
|
France |
Middle Eocene |
|
Impagidinium |
Impagidinium californiense
|
California |
Eocene |
|
Impagidinium |
Impagidinium cristatum
|
New Jersey |
Late Cretaceous |
|
Impagidinium |
Impagidinium dispertitum
|
Australia |
Late Eocene |
|
Impagidinium |
Impagidinium elegans
|
Australia |
Late Eocene |
|
Impagidinium |
Impagidinium gibrense
|
France |
Early Eocene |
Middle Eocene |
Impagidinium |
Impagidinium grande
|
Ghana |
Senonian |
|
Impagidinium |
Impagidinium grande
|
Ghana |
Campanian |
|
Impagidinium |
Impagidinium hyalodermum
|
France |
Kimmeridgian |
|
Impagidinium |
Impagidinium hyalodermum
|
France(Jura) |
Kimmeridgian |
|
Impagidinium |
Impagidinium japonicum
|
Japan |
Late Neogene |
|