Cleistosphaeridium |
Cleistosphaeridium armatum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium bergmannii
|
Argentina(Santa Cruz) |
Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium brevispinosum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium danicum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium diversispinosum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium echinoides
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium ehrenbergii
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium erectum
|
Canada(NWT,Franklin) |
Albian |
Turonian |
Cleistosphaeridium |
Cleistosphaeridium flexuosum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium giganteum
|
Spain |
Paleocene |
Eocene |
Cleistosphaeridium |
Cleistosphaeridium huguoniotii
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium insolitum
|
England(Isle of Wight) |
Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium leve
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium lumectum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium mediterraneum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium mojsisovicsii
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium multifurcatum
|
Nd |
Nd |
|