Hystrichosphaeridium |
Hystrichosphaeridium armatum
|
England(Isle of Wight) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium huguoniotii
|
England(Isle of Wight) |
Cenomanian |
|
Cannosphaeropsis |
Cannosphaeropsis choneta
|
England(Isle of Wight) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium huguoniotii
sp. nov. |
England(Isle of Wight) |
Cenomanian |
Cenomanian |
Tanyosphaeridium |
Tanyosphaeridium variecalamum
|
England(Surrey) |
Albian |
Turonian |
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Surrey) |
Albian |
Turonian |
Exochosphaeridium |
Exochosphaeridium striolatum
sp. nov. |
England(Surrey) |
Albian |
Turonian |
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
England(Surrey) |
Albian |
Turonian |
Hystrichosphaeridium |
Hystrichosphaeridium deanei
|
England(Surrey) |
Turonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium bowerbankii
|
England(Surrey) |
Albian |
Turonian |
Oligosphaeridium |
Oligosphaeridium complex
|
England(Surrey) |
Albian |
Turonian |
Polysphaeridium |
Polysphaeridium pumilum
|
England(Surrey) |
Cenomanian |
|
Polysphaeridium |
Polysphaeridium laminaspinosum
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium heteracanthum
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium multifurcatum
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium armatum
|
England(Surrey) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium polypes
|
England(Surrey) |
Cenomanian |
|