Cordosphaeridium |
Cordosphaeridium difficile
|
Canada(Arctic) |
Late Cretaceous |
|
Cordosphaeridium |
Cordosphaeridium gracile
|
E.Germany |
Early Oligocene |
|
Oligosphaeridium |
Oligosphaeridium
|
England |
Late Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium complex
|
England |
Cretaceous |
|
Litosphaeridium |
Litosphaeridium crassipes
|
England |
Late Cretaceous |
|
Polysphaeridium |
Polysphaeridium simplex
|
England |
Late Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
England(Berkshire) |
Ypresian |
|
Hystrichosphaeridium |
Hystrichosphaeridium pulcherrimum
|
England(Berkshire) |
Ypresian |
|
Cordosphaeridium |
Cordosphaeridium latispinosum
|
England(Berkshire) |
Ypresian |
|
Tanyosphaeridium |
Tanyosphaeridium regulare
|
England(Berkshire) |
Ypresian |
|
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Litosphaeridium |
Litosphaeridium inversibuccinum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Cordosphaeridium |
Cordosphaeridium fibrospinosum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Cordosphaeridium |
Cordosphaeridium cracenospinosum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Homotryblium |
Homotryblium tenuispinosum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Homotryblium |
Homotryblium pallidum
sp. nov. |
England(Berkshire) |
Ypresian |
|
Cordosphaeridium |
Cordosphaeridium multispinosum
|
England(Hampshire) |
Ypresian |
|