Achomosphaera |
Achomosphaera alcicornu
|
Germany(Prussia) |
Oligocene |
|
Achomosphaera |
Achomosphaera grallaeformis
|
Germany |
Oligocene |
|
Achomosphaera |
Achomosphaera hirundo
|
Germany |
Early Cretaceous |
|
Baltisphaeridium |
Baltisphaeridium claviferum
|
Nd |
Nd |
|
Callaiosphaeridium |
Callaiosphaeridium
|
France(Normandie) |
Senonian |
|
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Yorkshire) |
Hauterivian |
Middle Barremian |
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Surrey) |
Cenomanian |
|
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
France(Normandie) |
Senonian |
|
Cordosphaeridium |
Cordosphaeridium
|
W.Germany(Schleswig) |
Late Eocene |
|
Cordosphaeridium |
Cordosphaeridium cantharellus
|
Germany |
Oligocene |
|
Cordosphaeridium |
Cordosphaeridium cracenospinosum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Cordosphaeridium |
Cordosphaeridium difficile
|
Canada(Arctic) |
Late Cretaceous |
|
Cordosphaeridium |
Cordosphaeridium diktyoplokum
|
Germany |
Eocene |
|
Cordosphaeridium |
Cordosphaeridium diktyoplokum
|
Germany |
Eocene |
|
Cordosphaeridium |
Cordosphaeridium divergens
sp. nov. |
England(Isle of Wight) |
Ypresian |
|
Cordosphaeridium |
Cordosphaeridium eoinodes
|
Germany |
Early Cretaceous |
|
Cordosphaeridium |
Cordosphaeridium erectum
|
Canada |
Late Cretaceous |
|