Systematophora |
Systematophora orbifera
|
England |
Kimmeridgian |
|
Systematophora |
Systematophora schindewolfii
|
Atlantic Coast Offshore |
Hauterivian |
|
Tanyosphaeridium |
Tanyosphaeridium ellipticum
|
Florida |
Late Eocene |
|
Tenua |
Tenua anaphrissa
|
Atlantic Coast Offshore |
Barremian |
|
Thalassiphora |
Thalassiphora pelagica
|
Florida |
Oligocene |
|
Tuberculodinium |
Tuberculodinium rossignoliae
|
Atlantic Coast Offshore |
Late Miocene |
|
Valensiella |
Valensiella ovulum
|
Atlantic Coast Offshore |
Bathonian |
|
Wetzeliella |
Wetzeliella coleothrypta
|
Atlantic Coast Offshore |
Early Eocene |
|
Wetzeliella |
Wetzeliella condylos
|
England |
Early Eocene |
|
Xenascus |
Xenascus ceratioides
|
Atlantic Coast Offshore |
Santonian |
|