Hystrichosphaeridium |
Hystrichosphaeridium cribrotubiferum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium heteracanthum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium heteracanthum
|
England(Surrey) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium longifurcatum
|
England(Surrey) |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium longifurcatum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium vestitum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium xanthiopyxides
|
Nd |
Nd |
|
Prolixosphaeridium |
Prolixosphaeridium
|
England(Yorkshire) |
Middle Barremian |
|
Prolixosphaeridium |
Prolixosphaeridium deirense
sp. nov. |
England(Yorkshire) |
Middle Barremian |
|
Prolixosphaeridium |
Prolixosphaeridium granulosum
|
France |
Cretaceous |
|
Prolixosphaeridium |
Prolixosphaeridium mixtispinosum
|
Germany |
Late Jurassic |
|
Prolixosphaeridium |
Prolixosphaeridium parvispinum
|
France |
Late Cretaceous |
|
Prolixosphaeridium |
Prolixosphaeridium xanthiopyxides
|
Germany |
Late Cretaceous |
|
Surculosphaeridium |
Surculosphaeridium
|
England(Dorset) |
Oxfordian |
|
Surculosphaeridium |
Surculosphaeridium cribrotubiferum
|
England(Dorset) |
Oxfordian |
|
Surculosphaeridium |
Surculosphaeridium longifurcatum
|
England(Surrey) |
Cenomanian |
|
Surculosphaeridium |
Surculosphaeridium longifurcatum
|
France(Aisne) |
Early Cenomanian |
|