Batiacasphaera |
Batiacasphaera euteiches
|
Delaware |
Campanian |
Maastrichtian |
Tanyosphaeridium |
Tanyosphaeridium xanthiopyxides
|
Delaware |
Late Campanian |
Maastrichtian |
Hystrichodinium |
Hystrichodinium pulchrum
|
Delaware |
Late Campanian |
Maastrichtian |
Dinogymnium |
Dinogymnium albertii
|
Delaware |
Campanian |
Maastrichtian |
Isabelidinium |
Isabelidinium balmei
|
Delaware |
Campanian |
Maastrichtian |
Exochosphaeridium |
Exochosphaeridium bifidum
|
Delaware |
Campanian |
Maastrichtian |
Cyclonephelium |
Cyclonephelium distinctum
|
Delaware |
Campanian |
Maastrichtian |
Alterbia |
Alterbia acutula
|
Delaware |
Maastrichtian |
|
Isabelidinium |
Isabelidinium cooksoniae
|
Delaware |
Late Campanian |
Maastrichtian |
Spiniferites |
Spiniferites cingulatus
|
Delaware |
Campanian |
Maastrichtian |
Leberidocysta |
Leberidocysta chlamydata
|
Delaware |
Maastrichtian |
|
Chatangiella |
Chatangiella manumii
|
Delaware |
Campanian |
Maastrichtian |
Gonyaulacysta |
Gonyaulacysta wetzelii
|
Delaware |
Late Campanian |
Maastrichtian |
Phanerodinium |
Phanerodinium cayeuxii
|
Delaware |
Late Campanian |
Maastrichtian |
Subtilisphaera |
Subtilisphaera pontis-mariae
|
Delaware |
Campanian |
Maastrichtian |
Impletosphaeridium |
Impletosphaeridium whitei
|
Delaware |
Maastrichtian |
|
Exochosphaeridium |
Exochosphaeridium phragmites
|
Delaware |
Campanian |
Maastrichtian |