Stephanelytron |
Stephanelytron scarburghense
|
England |
Early Eocene |
|
Systematophora |
Systematophora orbifera
|
England |
Kimmeridgian |
|
Wetzeliella |
Wetzeliella condylos
|
England |
Early Eocene |
|
Polystephanephorus |
Polystephanephorus paracalathus
|
England |
Early Eocene |
|
Perisseiasphaeridium |
Perisseiasphaeridium pannosum
|
England |
Early Eocene |
|
Cordosphaeridium |
Cordosphaeridium cantharellus
|
Florida |
Early Miocene |
|
Thalassiphora |
Thalassiphora pelagica
|
Florida |
Oligocene |
|
Tanyosphaeridium |
Tanyosphaeridium ellipticum
|
Florida |
Late Eocene |
|
Hystrichokolpoma |
Hystrichokolpoma rigaudiae
|
Florida |
Late Eocene |
|
Gonyaulacysta |
Gonyaulacysta cladophora
|
Nd |
Kimmeridgian |
|