Gonyaulax |
Gonyaulax cristulata
|
England(Yorkshire) |
Early Callovian |
|
Gonyaulax |
Gonyaulax nealei
|
England(Yorkshire) |
Oxfordian |
|
Gonyaulax |
Gonyaulax transparens
|
England(Yorkshire) |
Early Callovian |
|
Baltisphaeridium |
Baltisphaeridium tribuliferum
|
England(Yorkshire) |
Oxfordian |
|
Hystrichogonyaulax |
Hystrichogonyaulax
|
Europe |
Middle Jurassic |
Late Jurassic |
Cymatiosphaera |
Cymatiosphaera membranacea
|
France |
Late Cretaceous |
|
Gonyaulacysta |
Gonyaulacysta monacantha
|
France |
Late Cretaceous |
|
Gonyaulacysta |
Gonyaulacysta jurassica
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta ambigua
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta dangeardii
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta dictyophora
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta eisenackii
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta gottisii
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta hyaloderma
|
France |
Late Jurassic |
|
Gonyaulacysta |
Gonyaulacysta nuciformis
|
France |
Late Jurassic |
|
Adnatosphaeridium |
Adnatosphaeridium caulleryi
|
France |
Late Jurassic |
|
Hystrichosphaeridium |
Hystrichosphaeridium caulleryi
|
France |
Late Jurassic |
|