Achomosphaera |
Achomosphaera alcicornu
|
England(Berkshire) |
Hauterivian |
Barremian |
Achomosphaera |
Achomosphaera alcicornu
|
Poland |
Early Oligocene |
|
Achomosphaera |
Achomosphaera hyperacantha
|
Australia(Victoria) |
Miocene |
|
Achomosphaera |
Achomosphaera neptuni
|
England(Yorkshire) |
Middle Hauterivian |
|
Achomosphaera |
Achomosphaera neptuni
|
W.Germany(Schleswig) |
Late Aptian |
|
Achomosphaera |
Achomosphaera ramulifera
|
England |
Cenomanian |
|
Achomosphaera |
Achomosphaera ramulifera
sp. nov. |
England(Isle of Wight) |
Ypresian |
|
Achomosphaera |
Achomosphaera sagena
sp. nov. |
England(Surrey) |
Cenomanian |
|
Achomosphaera |
Achomosphaera triangulata
|
W.Germany(Niedersachsen) |
Miocene |
|
Baltisphaeridium |
Baltisphaeridium neptunii
|
England(Yorkshire) |
Middle Hauterivian |
|
Baltisphaeridium |
Baltisphaeridium neptunii
|
England(Yorkshire) |
Middle Hauterivian |
|
Baltisphaeridium |
Baltisphaeridium neptunii
|
W.Germany(Schleswig) |
Late Aptian |
|
Baltisphaeridium |
Baltisphaeridium triangulatum
|
W.Germany(Niedersachsen) |
Miocene |
|
Hystrichosphaera |
Hystrichosphaera buccina
sp. nov. |
England(Isle of Wight) |
Ypresian |
|
Hystrichosphaera |
Hystrichosphaera cingulata
|
England(Surrey) |
Cenomanian |
|
Hystrichosphaera |
Hystrichosphaera cingulata
sp. nov. |
England(Surrey) |
Cenomanian |
|
Hystrichosphaera |
Hystrichosphaera cornuta
|
England(Kent) |
Ypresian |
|