Jusella |
Jusella denticulata
|
Nd |
Early Oligocene |
|
Kalyptea |
Kalyptea diceras
|
Nd |
Tithonian |
|
Kalyptea |
Kalyptea jurassica
|
Nd |
Bathonian |
Callovian |
Kalyptea |
Kalyptea monoceras
|
Nd |
Tithonian |
Early Cenomanian |
Kisselevia |
Kisselevia major
|
Nd |
Early Eocene |
Late Eocene |
Kisselevia |
Kisselevia ornata
|
Nd |
Early Eocene |
Late Eocene |
Komewuia |
Komewuia glabra
|
Nd |
Tithonian |
|
Lejeunia |
Lejeunia hyalina
|
Nd |
Late Oligocene |
|
Lejeunia |
Lejeunia kozlowskii
|
Nd |
Late Maastrichtian |
|
Lejeunia |
Lejeunia tricuspis
|
Nd |
Santonian |
Maastrichtian |
Leptodinium |
Leptodinium alectrolophum
|
Nd |
Middle Barremian |
|
Leptodinium |
Leptodinium arcuatum
|
Nd |
Late Oxfordian |
|
Leptodinium |
Leptodinium maculatum
|
Nd |
Early Eocene |
Middle Eocene |
Leptodinium |
Leptodinium membranigerum
|
Nd |
Late Oligocene |
Middle Miocene |
Leptodinium |
Leptodinium mirabile
|
Nd |
Late Oxfordian |
Kimmeridgian |
Leptodinium |
Leptodinium subtile
|
Nd |
Late Oxfordian |
Kimmeridgian |
Leptodinium |
Leptodinium tenuicornutum
|
Nd |
Albian |
|