Gonyaulacysta |
Gonyaulacysta palla
sp. nov. |
England(Yorkshire) |
Early Barremian |
|
Gonyaulacysta |
Gonyaulacysta axicerastes
sp. nov. |
England(Yorkshire) |
Middle Barremian |
|
Gonyaulacysta |
Gonyaulacysta helicoidea
|
England(Yorkshire) |
Early Barremian |
|
Gonyaulacysta |
Gonyaulacysta episoma
sp. nov. |
England(Yorkshire) |
Late Barremian |
|
Gonyaulacysta |
Gonyaulacysta hadra
sp. nov. |
England(Yorkshire) |
Late Barremian |
|
Gonyaulacysta |
Gonyaulacysta aichmetes
sp. nov. |
England(Yorkshire) |
Late Barremian |
|
Heslertonia |
Heslertonia
|
England(Yorkshire) |
Hauterivian |
|
Heslertonia |
Heslertonia heslertonensis
|
England(Yorkshire) |
Hauterivian |
|
Leptodinium |
Leptodinium alectrolophum
|
England(Yorkshire) |
Middle Barremian |
|
Gonyaulacysta |
Gonyaulacysta ambigua
|
France |
Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta aptiana
|
France |
Aptian |
|
Gonyaulacysta |
Gonyaulacysta cladophora
|
France |
Oxfordian |
|
Gonyaulacysta |
Gonyaulacysta eisenackii
|
France |
Oxfordian |
|
Gonyaulacysta |
Gonyaulacysta pachyderma
|
France |
Oxfordian |
|
Gonyaulacysta |
Gonyaulacysta cornigera
|
France |
Bathonian |
|
Gonyaulacysta |
Gonyaulacysta mamillifera
|
France |
Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta nannotrix
|
France |
Kimmeridgian |
|