Cleistosphaeridium |
Cleistosphaeridium echinoides
|
Nd |
Middle Oligocene |
Middle Miocene |
Cleistosphaeridium |
Cleistosphaeridium ehrenbergii
|
Nd |
Bathonian |
Oxfordian |
Cleistosphaeridium |
Cleistosphaeridium flexuosum
|
Nd |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium heteracanthum
|
Nd |
Late Cenomanian |
Early Eocene |
Cleistosphaeridium |
Cleistosphaeridium israelianum
|
Nd |
Pleistocene |
Holocene |
Cleistosphaeridium |
Cleistosphaeridium leve
|
Nd |
Late Oligocene |
Middle Miocene |
Cleistosphaeridium |
Cleistosphaeridium lumectum
|
Nd |
Late Oxfordian |
|
Cleistosphaeridium |
Cleistosphaeridium machaerophorum
|
Nd |
Late Oligocene |
Late Miocene |
Cleistosphaeridium |
Cleistosphaeridium multifurcatum
|
Nd |
Cenomanian |
Campanian |
Cleistosphaeridium |
Cleistosphaeridium oligacanthum
|
Nd |
Danian |
|
Cleistosphaeridium |
Cleistosphaeridium parvum
|
Nd |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium pectiniforme
|
Nd |
Middle Oligocene |
|
Cleistosphaeridium |
Cleistosphaeridium polypes
|
Nd |
Late Albian |
Early Cenomanian |
Cleistosphaeridium |
Cleistosphaeridium polytrichum
|
Nd |
Late Bathonian |
Oxfordian |
Cleistosphaeridium |
Cleistosphaeridium spiralisetum
|
Nd |
Maastrichtian |
|
Cleistosphaeridium |
Cleistosphaeridium tiara
|
Nd |
Late Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium tribuliferum
|
Nd |
Late Callovian |
Early Oxfordian |