Surculosphaeridium |
Surculosphaeridium longifurcatum
|
England(Devonshire) |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium armatum
|
England(Devonshire) |
Cenomanian |
Turonian |
Cyclonephelium |
Cyclonephelium distinctum
|
England(Devonshire) |
Cenomanian |
Turonian |
Cyclonephelium |
Cyclonephelium membraniphorum
|
England(Devonshire) |
Cenomanian |
Turonian |
Odontochitina |
Odontochitina costata
|
England(Devonshire) |
Cenomanian |
Turonian |
Odontochitina |
Odontochitina operculata
|
England(Devonshire) |
Cenomanian |
Turonian |
Oligosphaeridium |
Oligosphaeridium complex
|
England(Devonshire) |
Cenomanian |
Turonian |
Prolixosphaeridium |
Prolixosphaeridium conulum
|
England(Devonshire) |
Cenomanian |
Turonian |
Spiniferites |
Spiniferites ramosus
|
England(Devonshire) |
Cenomanian |
Turonian |
Achomosphaera |
Achomosphaera ramulifera
|
England(Devonshire) |
Turonian |
|
Achomosphaera |
Achomosphaera regiensis
|
England(Devonshire) |
Turonian |
|
Achomosphaera |
Achomosphaera sagena
|
England(Devonshire) |
Turonian |
|
Aldorfia |
Aldorfia deflandrei
|
England(Devonshire) |
Turonian |
|
Bacchidinium |
Bacchidinium polypes
|
England(Devonshire) |
Turonian |
|
Bacchidinium |
Bacchidinium polypes
|
England(Devonshire) |
Turonian |
|
Batiacasphaera |
Batiacasphaera euteiches
|
England(Devonshire) |
Turonian |
|
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Devonshire) |
Turonian |
|