Adnatosphaeridium |
Adnatosphaeridium
|
Nd |
Late Jurassic |
|
Adnatosphaeridium |
Adnatosphaeridium
|
Nd |
Cretaceous |
|
Adnatosphaeridium |
Adnatosphaeridium
|
Nd |
Tertiary |
|
Aptea |
Aptea polymorpha
|
Nd |
Barremian |
Cenomanian |
Areoligera |
Areoligera sp
|
New Jersey |
Late Jurassic |
|
Areoligera |
Areoligera sp
|
Nd |
Turonian |
|
Areoligera |
Areoligera sp
|
Nd |
Tertiary |
|
Canningia |
Canningia
|
Nd |
Late Jurassic |
|
Canningia |
Canningia
|
Nd |
Cretaceous |
|
Canningia |
Canningia
|
Nd |
Tertiary |
|
Canninginopsis |
Canninginopsis denticulata
|
Nd |
Late Jurassic |
|
Canninginopsis |
Canninginopsis denticulata
|
Nd |
Cretaceous |
|
Canninginopsis |
Canninginopsis denticulata
|
Nd |
Tertiary |
|
Ceratium |
Ceratium arcticum
|
Nd |
Recent |
|
Ceratium |
Ceratium bucephalum
|
Nd |
Recent |
|
Ceratium |
Ceratium carolinianum
|
Nd |
Recent |
|
Ceratium |
Ceratium cornutum
|
Nd |
Recent |
|