Hystrichosphaeridium |
Hystrichosphaeridium unituberculatum
|
Kansas |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium valgum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium verschiedener
|
Nd |
Nd |
|
Hystrichosphaerina |
Hystrichosphaerina turonica
|
E.Germany |
Turonian |
|
Hystrichosphaeropsis |
Hystrichosphaeropsis complanata
|
Germany |
Late Eocene |
Early Oligocene |
Hystrichosphaeropsis |
Hystrichosphaeropsis ovum
|
W.Germany |
Late Oligocene |
Middle Miocene |
Hystrichosphaeropsis |
Hystrichosphaeropsis ovum
|
France |
Senonian |
|
Hystrichosphaeropsis |
Hystrichosphaeropsis wetzelii
|
Nd |
Nd |
|
Hystrichostrogylon |
Hystrichostrogylon membraniphorum
|
W.Germany |
Late Eocene |
|
Impletosphaeridium |
Impletosphaeridium capillaceum
|
W.Germany |
Early Eocene |
|
Impletosphaeridium |
Impletosphaeridium erinaceum
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium implicatum
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium kroemmelbeinii
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium labyrinthus
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium rugosum
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium transfodum
|
Nd |
Nd |
|
Impletosphaeridium |
Impletosphaeridium whitei
|
France |
Senonian |
|