Gillinia |
Gillinia hymenophora
|
Atlantic Coast Offshore |
Cenomanian |
Campanian |
Gonyaulacysta |
Gonyaulacysta cassidata
|
Atlantic Coast Offshore |
Albian |
|
Gonyaulacysta |
Gonyaulacysta episoma
|
Atlantic Coast Offshore |
Albian |
|
Gonyaulacysta |
Gonyaulacysta serrata
|
Atlantic Coast Offshore |
Berriasian |
Hauterivian |
Gonyaulacysta |
Gonyaulacysta wetzelii
|
Atlantic Coast Offshore |
Campanian |
|
Hexagonifera |
Hexagonifera chlamydata
|
Atlantic Coast Offshore |
Campanian |
Maastrichtian |
Horologinella |
Horologinella apiculata
|
Atlantic Coast Offshore |
Campanian |
Early Paleocene |
Hystrichodinium |
Hystrichodinium pulchrum
|
Atlantic Coast Offshore |
Portlandian |
Middle Maastrichtian |
Hystrichokolpoma |
Hystrichokolpoma sequanaportus
|
Atlantic Coast Offshore |
Campanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium bowerbankii
|
Atlantic Coast Offshore |
Albian |
Early Campanian |
Hystrichosphaeridium |
Hystrichosphaeridium cooksoniae
|
Atlantic Coast Offshore |
Albian |
Cenomanian |
Hystrichosphaeridium |
Hystrichosphaeridium paracostatum
|
Atlantic Coast Offshore |
Late Turonian |
Coniacian |
Hystrichosphaeridium |
Hystrichosphaeridium recurvatum
|
Atlantic Coast Offshore |
Middle Valanginian |
Campanian |
Hystrichosphaeridium |
Hystrichosphaeridium salpingophorum
|
Atlantic Coast Offshore |
Campanian |
Early Paleocene |
Hystrichosphaeridium |
Hystrichosphaeridium sp
|
Atlantic Coast Offshore |
Santonian |
Early Maastrichtian |
Hystrichosphaeridium |
Hystrichosphaeridium sp.A
sp. nov. |
Atlantic Coast Offshore |
Late Aptian |
Early Cenomanian |
Hystrichosphaeridium |
Hystrichosphaeridium sp.B
sp. nov. |
Atlantic Coast Offshore |
Maastrichtian |
|