Eopseudoceratium |
Eopseudoceratium
|
Nd |
Nd |
|
Evittodinium |
Evittodinium giselae
|
Nd |
Nd |
|
Exochosphaeridium |
Exochosphaeridium truncigerum
|
Nd |
Nd |
|
Fibrocysta |
Fibrocysta ovalis
|
Nd |
Nd |
|
Florentinia |
Florentinia flosculus
|
France(Paris Basin) |
Senonian |
|
Florentinia |
Florentinia ramula
|
New Jersey |
Maastrichtian |
|
Florentinia |
Florentinia torulosa
|
England |
Turonian |
Senonian |
Fromea |
Fromea expolita
|
Canada(NWT,Mackenzie) |
Hauterivian |
Barremian |
Fromea |
Fromea glabella
|
Canada(Alberta) |
Late Albian |
|
Fromea |
Fromea minor
|
China(Hopei) |
Late Eocene |
Middle Oligocene |
Fromea |
Fromea psilata
|
Nd |
Nd |
|
Fromea |
Fromea scabrata
|
China(Hopei) |
Late Oligocene |
|
Fromea |
Fromea senilis
|
Canada(NWT,Mackenzie) |
Early Valanginian |
Middle Valanginian |
Fromea |
Fromea tornatilis
|
England(Buckinghamshire) |
Late Callovian |
Oxfordian |
Fromea |
Fromea triquetra
|
Canada(NWT,Mackenzie) |
Barremian |
|
Gardodinium |
Gardodinium
|
E.Germany |
Early Hauterivian |
Aptian |
Gardodinium |
Gardodinium albertii
|
Nd |
Nd |
|