Gonyaulacysta |
Gonyaulacysta cassidata
|
Northern Hemisphere |
Late Oxfordian |
Cenomanian |
Gonyaulacysta |
Gonyaulacysta eisenackii
|
Northern Hemisphere |
Late Bajocian |
Early Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta jurassica
|
Northern Hemisphere |
Bathonian |
Early Kimmeridgian |
Hebecysta |
Hebecysta brevicornuta
|
Northern Hemisphere |
Norian |
|
Hystrichodinium |
Hystrichodinium sp
|
Northern Hemisphere |
Late Kimmeridgian |
Early Maastrichtian |
Lanterna |
Lanterna sp
|
Northern Hemisphere |
Late Oxfordian |
Portlandian |
Liasidium |
Liasidium variabile
|
Northern Hemisphere |
Late Sinemurian |
|
Luehndea |
Luehndea spinosa
|
Northern Hemisphere |
Late Pliensbachian |
|
Mancodinium |
Mancodinium semitabulatum
|
Northern Hemisphere |
Pliensbachian |
Middle Bajocian |
Moesiodinium |
Moesiodinium raileanui
|
Northern Hemisphere |
Late Toarcian |
Aalenian |
Muderongia |
Muderongia simplex
|
Northern Hemisphere |
Portlandian |
Hauterivian |
Nannoceratopsis |
Nannoceratopsis gracilis
|
Northern Hemisphere |
Pliensbachian |
Bathonian |
Nannoceratopsis |
Nannoceratopsis pellucida
|
Northern Hemisphere |
Bathonian |
Oxfordian |
Nannoceratopsis |
Nannoceratopsis senex
|
Northern Hemisphere |
Late Pliensbachian |
Early Aalenian |
Nannoceratopsis |
Nannoceratopsis triceras
|
Northern Hemisphere |
Late Pliensbachian |
Callovian |
Noricysta |
Noricysta sp
|
Northern Hemisphere |
Norian |
Rhaetian |
Occisucysta |
Occisucysta balios
|
Northern Hemisphere |
Late Oxfordian |
Kimmeridgian |