Oligosphaeridium |
Oligosphaeridium prolixispinosum
sp. nov. |
England(Surrey) |
Cenomanian |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
England(Berkshire) |
Ypresian |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
Australia(NSW) |
Early Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium reniforme
|
USA |
Early Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium reticulatum
sp. nov. |
England(Surrey) |
Cenomanian |
|
Oligosphaeridium |
Oligosphaeridium vasiformum
|
England(Yorkshire) |
Middle Hauterivian |
|
Perisseiasphaeridium |
Perisseiasphaeridium
|
England(Isle of Wight) |
Ypresian |
|
Perisseiasphaeridium |
Perisseiasphaeridium eisenackii
sp. nov. |
Germany |
Early Cretaceous |
|
Perisseiasphaeridium |
Perisseiasphaeridium pannosum
sp. nov. |
England(Isle of Wight) |
Ypresian |
|
Polysphaeridium |
Polysphaeridium
|
England(Kent) |
Ypresian |
|
Polysphaeridium |
Polysphaeridium asperum
|
Germany |
Miocene |
|
Polysphaeridium |
Polysphaeridium deflandrei
|
France |
Middle Jurassic |
|
Polysphaeridium |
Polysphaeridium elegantulum
|
Germany |
Tertiary |
|
Polysphaeridium |
Polysphaeridium fabium
|
USA |
Early Cretaceous |
|
Polysphaeridium |
Polysphaeridium fluctuans
|
France |
Eocene |
|
Polysphaeridium |
Polysphaeridium follium
|
USA |
Early Cretaceous |
|
Polysphaeridium |
Polysphaeridium fucosum
|
France |
Cretaceous |
|