Hystrichosphaeridium |
Hystrichosphaeridium follium
|
Kansas |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium grallaeforme
|
W.Germany(Hesse) |
Late Oligocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium hirundo
|
W.Germany(Schleswig) |
Late Aptian |
|
Hystrichosphaeridium |
Hystrichosphaeridium irregulare
|
Canada(Alberta) |
Late Barremian |
Aptian |
Hystrichosphaeridium |
Hystrichosphaeridium isocalamum
|
Australia(NSW) |
Early Cretaceous |
|
Hystrichosphaeridium |
Hystrichosphaeridium leptodermum
|
W.Germany |
Middle Oligocene |
Middle Miocene |
Hystrichosphaeridium |
Hystrichosphaeridium majus
|
Belgium |
Late Cretaceous |
|
Hystrichosphaeridium |
Hystrichosphaeridium marsupium
|
Kansas |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium membranaceum
|
France |
Late Cretaceous |
|
Hystrichosphaeridium |
Hystrichosphaeridium monstruosum
|
Kansas |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium multifurcatum
|
France(Paris Basin) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium oligacanthum
|
Baltic |
Danian |
|
Hystrichosphaeridium |
Hystrichosphaeridium palmatum
|
France(Normandie) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium paradoxum
|
W.Germany(Hesse) |
Late Oligocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium perforatum
|
W.Germany(Niedersachsen) |
Hauterivian |
|
Hystrichosphaeridium |
Hystrichosphaeridium perovatum
|
Kansas |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium placacantha
|
Australia(Victoria) |
Miocene |
|