Gonyaulacysta |
Gonyaulacysta cassidata
|
Atlantic Ocean |
Barremian |
Aptian |
Gonyaulacysta |
Gonyaulacysta dangeardii
|
Atlantic Ocean |
Oxfordian |
|
Gonyaulacysta |
Gonyaulacysta dangeardii
|
Atlantic Ocean |
Callovian |
Oxfordian |
Gonyaulacysta |
Gonyaulacysta exilicristata
|
Atlantic Ocean |
Albian |
Early Cenomanian |
Gonyaulacysta |
Gonyaulacysta helicoidea
|
Atlantic Ocean |
Barremian |
Aptian |
Gonyaulacysta |
Gonyaulacysta nuciformis
|
Atlantic Ocean |
Callovian |
Oxfordian |
Gonyaulacysta |
Gonyaulacysta nuciformis
|
Atlantic Ocean |
Oxfordian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta nuciformis
|
Atlantic Ocean |
Oxfordian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta scarburghensis
|
Atlantic Ocean |
Callovian |
Oxfordian |
Gonyaulacysta |
Gonyaulacysta scarburghensis
|
Atlantic Ocean |
Oxfordian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta sp.A
sp. nov. |
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta sp.B
sp. nov. |
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta sp.C
sp. nov. |
Nd |
Nd |
|
Heliodinium |
Heliodinium voigtii
|
Atlantic Ocean |
Albian |
Early Cenomanian |
Heliodinium |
Heliodinium voigtii
|
Atlantic Ocean |
Barremian |
Aptian |
Heslertonia |
Heslertonia pellucida
|
Atlantic Ocean |
Late Jurassic |
Early Cretaceous |
Hexagonifera |
Hexagonifera chlamydata
|
Atlantic Ocean |
Albian |
Early Cenomanian |