Tenua |
Tenua capitata
|
Nd |
Kimmeridgian |
Portlandian |
Tenua |
Tenua echinata
|
Nd |
Kimmeridgian |
|
Tenua |
Tenua hystrix
|
Nd |
Oxfordian |
Portlandian |
Tenua |
Tenua pilosa
|
England |
Early Oxfordian |
|
Tenua |
Tenua pilosa
|
Nd |
Callovian |
Kimmeridgian |
Tenua |
Tenua rioultii
|
Nd |
Bathonian |
Oxfordian |
Tenua |
Tenua varispinosa
|
Nd |
Bathonian |
Callovian |
Tenua |
Tenua verrucosa
|
Nd |
Callovian |
Kimmeridgian |
Tenua |
Tenua villersensis
|
France |
Late Callovian |
|
Tenua |
Tenua villersensis
|
Nd |
Callovian |
Oxfordian |
Thuledinium |
Thuledinium groenlandicum
|
Nd |
Callovian |
Oxfordian |
Tubotuberella |
Tubotuberella rhombiformis
|
Nd |
Kimmeridgian |
Portlandian |
Tubotuberella |
Tubotuberella sphaerocephalum
|
Nd |
Kimmeridgian |
Portlandian |
Valensiella |
Valensiella ampulla
|
Nd |
Bathonian |
|
Valensiella |
Valensiella ovulum
|
Nd |
Bajocian |
Oxfordian |
Valensiella |
Valensiella vermiculata
|
Nd |
Bathonian |
|
Valvaeodinium |
Valvaeodinium armatum
|
Nd |
Pliensbachian |
|