Hystrichosphaeridium |
Hystrichosphaeridium truncigerum
|
Atlantic Coast Offshore |
Coniacian |
Santonian |
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
Atlantic Coast Offshore |
Campanian |
Early Paleocene |
Hystrichosphaeropsis |
Hystrichosphaeropsis ovum
|
Atlantic Coast Offshore |
Late Turonian |
Early Paleocene |
Imbatodinium |
Imbatodinium kondratjevii
|
Atlantic Coast Offshore |
Portlandian |
Early Valanginian |
Impletosphaeridium |
Impletosphaeridium whitei
|
Atlantic Coast Offshore |
Cenomanian |
Campanian |
Isabelidinium |
Isabelidinium bakeri
|
Atlantic Coast Offshore |
Maastrichtian |
Early Paleocene |
Isabelidinium |
Isabelidinium belfastense
|
Atlantic Coast Offshore |
Campanian |
Maastrichtian |
Isabelidinium |
Isabelidinium cooksoniae
|
Atlantic Coast Offshore |
Santonian |
Early Paleocene |
Isabelidinium |
Isabelidinium cretaceum
|
Atlantic Coast Offshore |
Maastrichtian |
|
Isabelidinium |
Isabelidinium korojonense
|
Atlantic Coast Offshore |
Maastrichtian |
|
Kleithriasphaeridium |
Kleithriasphaeridium eoinodes
|
Atlantic Coast Offshore |
Late Valanginian |
Late Aptian |
Kleithriasphaeridium |
Kleithriasphaeridium fasciatum
|
Atlantic Coast Offshore |
Hauterivian |
Barremian |
Kleithriasphaeridium |
Kleithriasphaeridium loffrense
|
Atlantic Coast Offshore |
Late Albian |
Early Campanian |
Kleithriasphaeridium |
Kleithriasphaeridium readei
|
Atlantic Coast Offshore |
Cenomanian |
Early Santonian |
Lanterna |
Lanterna sportula
|
Atlantic Coast Offshore |
Portlandian |
Late Valanginian |
Lejeunia |
Lejeunia kozlowskii
|
Atlantic Coast Offshore |
Maastrichtian |
Early Paleocene |
Lejeunia |
Lejeunia magnifica
|
Atlantic Coast Offshore |
Maastrichtian |
Early Paleocene |