Cleistosphaeridium |
Cleistosphaeridium commixtum
|
China(Hopei) |
Late Eocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium diversispinosum
|
England |
Early Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium flexuosum
|
England |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium granulatum
|
Australia(Queensland) |
Albian |
|
Cleistosphaeridium |
Cleistosphaeridium huguoniotii
|
France |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium laxabaculum
|
Pacific(E.China Sea) |
Pleistocene |
|
Cleistosphaeridium |
Cleistosphaeridium mediterraneum
|
Italy |
Senonian |
|
Cleistosphaeridium |
Cleistosphaeridium minus
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium multifurcatum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium multifurcatum
|
W.Germany(N.Rhine) |
Early Santonian |
|
Cleistosphaeridium |
Cleistosphaeridium panshanense
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Cleistosphaeridium |
Cleistosphaeridium patagonicum
|
Argentina(Santa Cruz) |
Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium paucifurcatum
|
Australia(Victoria) |
Paleocene |
|
Cleistosphaeridium |
Cleistosphaeridium perforoconum
|
W.Germany(N.Rhine) |
Early Santonian |
|
Cleistosphaeridium |
Cleistosphaeridium polyacanthum
|
France |
Early Kimmeridgian |
|
Cleistosphaeridium |
Cleistosphaeridium polypes
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium radiculopse
|
China(Sinkiang Uighur) |
Santonian |
Maastrichtian |