Fusiformacysta |
Fusiformacysta sp
|
Arizona |
Late Cenomanian |
|
Geiselodinium |
Geiselodinium sp
|
Arizona |
Late Cenomanian |
|
Ginginodinium |
Ginginodinium evittii
|
Nd |
Nd |
|
Ginginodinium |
Ginginodinium spinulosum
|
Arizona |
Late Cenomanian |
|
Gonyaulacysta |
Gonyaulacysta cassidata
|
Arizona |
Late Cenomanian |
Early Turonian |
Gonyaulacysta |
Gonyaulacysta cretacea
|
Nd |
Nd |
|
Gonyaulacysta |
Gonyaulacysta helicoidea
|
Arizona |
Late Cenomanian |
Early Turonian |
Gonyaulacysta |
Gonyaulacysta sp
|
Nd |
Nd |
|
Hapsocysta |
Hapsocysta sp
|
Nd |
Nd |
|
Heterosphaeridium |
Heterosphaeridium conjunctum
|
Arizona |
Late Cenomanian |
|
Heterosphaeridium |
Heterosphaeridium sp
|
Nd |
Nd |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Arizona |
Late Cenomanian |
Early Turonian |
Hystrichosphaeridium |
Hystrichosphaeridium bowerbankii
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium difficile
|
Arizona |
Late Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium difficile
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium recurvatum
|
Arizona |
Late Cenomanian |
Early Turonian |
Hystrichosphaeridium |
Hystrichosphaeridium sp
|
New Mexico |
Late Cenomanian |
Early Turonian |