Gonyaulacysta |
Gonyaulacysta apionis
|
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta birkelundiae
|
Greenland |
Portlandian |
|
Gonyaulacysta |
Gonyaulacysta boreas
|
England(Yorkshire) |
Early Barremian |
|
Gonyaulacysta |
Gonyaulacysta cauda
|
France |
Early Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta compta
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Gonyaulacysta |
Gonyaulacysta confossa
|
England(Yorkshire) |
Hauterivian |
|
Gonyaulacysta |
Gonyaulacysta confusa
|
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta ehrenbergii
|
France |
Early Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta episoma
|
England(Yorkshire) |
Late Barremian |
|
Gonyaulacysta |
Gonyaulacysta fetchamensis
|
England(Surrey) |
Early Cenomanian |
|
Gonyaulacysta |
Gonyaulacysta gigas
|
North Sea |
Kimmeridgian |
Portlandian |
Gonyaulacysta |
Gonyaulacysta globata
|
England |
Middle Kimmeridgian |
Late Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta globosa
|
Canada(Alberta) |
Middle Albian |
Late Albian |
Gonyaulacysta |
Gonyaulacysta gottisii
|
France(Aquitaine) |
Late Oxfordian |
Early Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta hadra
|
England(Yorkshire) |
Late Barremian |
|
Gonyaulacysta |
Gonyaulacysta italica
|
Italy |
Late Cretaceous |
Paleocene |
Gonyaulacysta |
Gonyaulacysta mamillifera
|
Nd |
Nd |
|