Dinopterygium |
Dinopterygium cladoides
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Epelidosphaeridia |
Epelidosphaeridia spinosa
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Exochosphaeridium |
Exochosphaeridium bifidum
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Hystrichodinium |
Hystrichodinium pulchrum
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Kleithriasphaeridium |
Kleithriasphaeridium loffrense
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Odontochitina |
Odontochitina costata
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Odontochitina |
Odontochitina operculata
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Surculosphaeridium |
Surculosphaeridium longifurcatum
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Trichodinium |
Trichodinium castanea
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Tubulospina |
Tubulospina oblongata
|
USA(Atlantic Coast) |
Vraconian |
Santonian |
Wallodinium |
Wallodinium sp
|
USA(Atlantic Coast) |
|
|
Cyclonephelium |
Cyclonephelium membraniphorum
|
USA(Atlantic Coast) |
Cenomanian |
|
Achomosphaera |
Achomosphaera triangulata
|
USA(Atlantic Coast) |
Vraconian |
Early Cenomanian |
Kiokansium |
Kiokansium polypes
|
USA(Atlantic Coast) |
Vraconian |
Early Cenomanian |
Spiniferites |
Spiniferites ancorifer
|
USA(Atlantic Coast) |
Vraconian |
Early Cenomanian |
Xiphophoridium |
Xiphophoridium alatum
|
USA(Atlantic Coast) |
Vraconian |
Early Cenomanian |
Adnatosphaeridium |
Adnatosphaeridium apenninicum
|
USA(Atlantic Coast) |
Santonian |
|