Oodnadattia |
Oodnadattia cooksoniae
|
Nd |
Cretaceous |
|
Oodnadattia |
Oodnadattia tuberculata
|
Nd |
Nd |
|
Opaeopsomus |
Opaeopsomus wapellensis
|
Nd |
Callovian |
|
Operculites |
Operculites carbonis
|
Nd |
Campanian |
|
Operculodinium |
Operculodinium centrocarpum
|
Nd |
Miocene |
|
Operculodinium |
Operculodinium flucturum
|
Nd |
Maastrichtian |
Danian |
Operculodinium |
Operculodinium giganteum
|
Nd |
Pleistocene |
Holocene |
Operculodinium |
Operculodinium hirsutum
|
Nd |
Late Cretaceous |
|
Operculodinium |
Operculodinium hirsutum
|
Nd |
Cretaceous |
|
Operculodinium |
Operculodinium hirsutum
|
Nd |
Danian |
|
Operculodinium |
Operculodinium hirsutum
|
Nd |
Nd |
|
Operculodinium |
Operculodinium israelianum
|
Nd |
Pleistocene |
|
Operculodinium |
Operculodinium placitum
|
Nd |
Oligocene |
|
Operculodinium |
Operculodinium psilatum
|
Nd |
Recent |
|
Operculodinium |
Operculodinium pugiatum
|
Nd |
Nd |
|
Operculodinium |
Operculodinium punctatum
|
Nd |
Albian |
Cenomanian |
Operculodinium |
Operculodinium rarispinosum
|
Nd |
Albian |
Cenomanian |