Gonyaulacysta |
Gonyaulacysta pyrum
|
Nd |
Maastrichtian |
Danian |
Gonyaulacysta |
Gonyaulacysta rara
|
Nd |
Tertiary |
|
Gonyaulacysta |
Gonyaulacysta sarjeantii
|
Nd |
Tithonian |
|
Gonyaulacysta |
Gonyaulacysta sarjeantii
|
Nd |
Tithonian |
|
Gonyaulacysta |
Gonyaulacysta sarjeantii
|
Nd |
Tithonian |
Tithonian |
Gonyaulacysta |
Gonyaulacysta scarburghensis
sp. nov. |
Nd |
Callovian |
Early Oxfordian |
Gonyaulacysta |
Gonyaulacysta scottii
|
Nd |
Early Kimmeridgian |
Middle Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta serrata
|
Nd |
Late Jurassic |
Neocomian |
Gonyaulacysta |
Gonyaulacysta striata
|
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta superornata
|
Nd |
Bathonian |
|
Gonyaulacysta |
Gonyaulacysta systremmata
|
Nd |
Early Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta tenuiceras
|
Nd |
Late Barremian |
Aptian |
Gonyaulacysta |
Gonyaulacysta tenuicornuta
|
Nd |
Albian |
|
Gonyaulacysta |
Gonyaulacysta tenuitabulata
|
Nd |
Middle Oligocene |
Middle Miocene |
Gonyaulacysta |
Gonyaulacysta transparens
|
Nd |
Early Callovian |
|
Gonyaulacysta |
Gonyaulacysta venusta
|
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta wetzelii
|
Nd |
Senonian |
|