Tubotuberella |
Tubotuberella rhombiformis
|
Nd |
Kimmeridgian |
Portlandian |
Tubotuberella |
Tubotuberella sphaerocephalum
|
Nd |
Kimmeridgian |
Portlandian |
Sirmiodinium |
Sirmiodinium grossii
|
Nd |
Kimmeridgian |
Portlandian |
Odontochitina |
Odontochitina operculata
|
Nd |
Kimmeridgian |
Portlandian |
Oligosphaeridium |
Oligosphaeridium dictyophorum
|
Nd |
Kimmeridgian |
Portlandian |
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
Nd |
Kimmeridgian |
Portlandian |
Dichadogonyaulax |
Dichadogonyaulax pannea
|
Nd |
Portlandian |
|
Dichadogonyaulax |
Dichadogonyaulax schizoblata
|
Nd |
Portlandian |
|
Omatia |
Omatia montgomeryi
|
Nd |
Portlandian |
|
Gonyaulax |
Gonyaulax culmula
|
Nd |
Portlandian |
|
Herendeenia |
Herendeenia pisciformis
|
Nd |
Portlandian |
|
Hystrichosphaeridium |
Hystrichosphaeridium mantellii
|
Nd |
Portlandian |
|
Phoberocysta |
Phoberocysta neocomica
|
Nd |
Portlandian |
|
Biorbifera |
Biorbifera johnewingii
|
Nd |
Portlandian |
Cretaceous |
Diacanthum |
Diacanthum hollisteri
|
Nd |
Portlandian |
Cretaceous |
Shublikodinium |
Shublikodinium arcticum
|
Nd |
Carnian |
|
Shublikodinium |
Shublikodinium spinulosum
|
Nd |
Carnian |
|