Surculosphaeridium |
Surculosphaeridium longifurcatum
|
England(Surrey) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium longifurcatum
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium diversispinosum
|
England(Surrey) |
Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium ancoriferum
|
England(Surrey) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium ancoriferum
|
England(Surrey) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium heteracanthum
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium heteracanthum
|
England(Surrey) |
Cenomanian |
|
Exochosphaeridium |
Exochosphaeridium
|
England(Surrey) |
Cenomanian |
|
Prolixosphaeridium |
Prolixosphaeridium
|
England(Yorkshire) |
Middle Barremian |
|
Prolixosphaeridium |
Prolixosphaeridium deirense
sp. nov. |
England(Yorkshire) |
Middle Barremian |
|
Exochosphaeridium |
Exochosphaeridium palmatum
|
France |
Late Cretaceous |
|
Exochosphaeridium |
Exochosphaeridium striolatum
|
France |
Late Cretaceous |
|
Exochosphaeridium |
Exochosphaeridium pseudhystrichodinium
|
France |
Late Cretaceous |
|
Cleistosphaeridium |
Cleistosphaeridium ehrenbergii
|
France |
Late Jurassic |
|
Cleistosphaeridium |
Cleistosphaeridium multifurcatum
|
France |
Late Cretaceous |
|
Cleistosphaeridium |
Cleistosphaeridium polytrichum
|
France |
Middle Jurassic |
|
Prolixosphaeridium |
Prolixosphaeridium granulosum
|
France |
Cretaceous |
|