Oligosphaeridium |
Oligosphaeridium prolixispinosum
sp. nov. |
England(Surrey) |
Cenomanian |
|
Polysphaeridium |
Polysphaeridium pumilum
sp. nov. |
England(Surrey) |
Cenomanian |
|
Polysphaeridium |
Polysphaeridium laminaspinosum
sp. nov. |
England(Surrey) |
Cenomanian |
|
Tanyosphaeridium |
Tanyosphaeridium
|
England(Surrey) |
Cenomanian |
|
Tanyosphaeridium |
Tanyosphaeridium variecalamum
sp. nov. |
England(Surrey) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium simplicispinum
|
England(Yorkshire) |
Barremian |
|
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Yorkshire) |
Hauterivian |
Middle Barremian |
Hystrichosphaeridium |
Hystrichosphaeridium asymmetricum
|
England(Yorkshire) |
Hauterivian |
Middle Barremian |
Hystrichosphaeridium |
Hystrichosphaeridium simplicispinum
sp. nov. |
England(Yorkshire) |
Middle Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium arborispinum
sp. nov. |
England(Yorkshire) |
Middle Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium costatum
sp. nov. |
England(Yorkshire) |
Oxfordian |
|
Oligosphaeridium |
Oligosphaeridium vasiformum
|
England(Yorkshire) |
Middle Hauterivian |
|
Oligosphaeridium |
Oligosphaeridium macrotubulum
|
England(Yorkshire) |
Hauterivian |
|
Cordosphaeridium |
Cordosphaeridium fasciatum
sp. nov. |
England(Yorkshire) |
Early Barremian |
|
Litosphaeridium |
Litosphaeridium flosculus
|
France |
Late Cretaceous |
|
Litosphaeridium |
Litosphaeridium truncigerum
|
France |
Late Cretaceous |
|
Polysphaeridium |
Polysphaeridium deflandrei
|
France |
Middle Jurassic |
|