Ellipsoidictyum |
Ellipsoidictyum imperfectum
|
Nd |
Early Albian |
Middle Albian |
Ellipsoidictyum |
Ellipsoidictyum reticulatum
|
France(Poitou) |
Bajocian |
|
Gonyaulacysta |
Gonyaulacysta eisenackii
|
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta eisenackii
|
Nd |
Nd |
|
Gonyaulax |
Gonyaulax acanthosphaera
|
England(Yorkshire) |
Early Oxfordian |
|
Gonyaulax |
Gonyaulax bulloidea
|
Australia(W.Australia) |
Tithonian |
|
Gonyaulax |
Gonyaulax caytonensis
|
Nd |
Early Callovian |
|
Gonyaulax |
Gonyaulax cristulata
|
Nd |
Early Callovian |
|
Gonyaulax |
Gonyaulax decapitata
|
Nd |
Bajocian |
|
Homotryblium |
Homotryblium floripes
|
Nd |
Late Eocene |
|
Homotryblium |
Homotryblium floripes
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium floripes
|
Nd |
Nd |
|
Imbatodinium |
Imbatodinium imbatodinense
|
Nd |
Late Jurassic |
|
Jusella |
Jusella rariporosa
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia trematophora
|
Nd |
Late Eocene |
|
Lithodinia |
Lithodinia acanthosphaera
|
England(Yorkshire) |
Early Oxfordian |
|
Lithodinia |
Lithodinia bulloidea
|
Australia(W.Australia) |
Tithonian |
|