Gonyaulacysta |
Gonyaulacysta jurassica
|
USA(Atlantic Coast) |
Kimmeridgian |
|
Senoniasphaera |
Senoniasphaera jurassica
|
USA(Atlantic Coast) |
Kimmeridgian |
|
Ctenidodinium |
Ctenidodinium panneum
|
USA(Atlantic Coast) |
Tithonian |
|
Ctenidodinium |
Ctenidodinium culmula
|
USA(Atlantic Coast) |
Tithonian |
|
Muderongia |
Muderongia simplex
|
USA(Atlantic Coast) |
Late Barremian |
|
Muderongia |
Muderongia staurota
|
USA(Atlantic Coast) |
Late Barremian |
|
Pseudoceratium |
Pseudoceratium pelliferum
|
USA(Atlantic Coast) |
Hauterivian |
Barremian |
Ctenidodinium |
Ctenidodinium elegantulum
|
USA(Atlantic Coast) |
Hauterivian |
|
Broomea |
Broomea jaegeri
|
USA(Atlantic Coast) |
Hauterivian |
|
Cyclonephelium |
Cyclonephelium tabulatum
|
USA(Atlantic Coast) |
Aptian |
|
Pilosisporites |
Pilosisporites trichopapillosus
|
USA(Atlantic Coast) |
Aptian |
|
Pilosisporites |
Pilosisporites verus
|
USA(Atlantic Coast) |
Aptian |
|
Systematophora |
Systematophora schindewolfii
|
USA(Atlantic Coast) |
Aptian |
|
Spinidinium |
Spinidinium vestitum
|
USA(Atlantic Coast) |
Albian |
|
Corollina |
Corollina torosa
|
USA(Atlantic Coast) |
Late Albian |
|
Perinopollenites |
Perinopollenites elatoides
|
USA(Atlantic Coast) |
Cenomanian |
|
Coronifera |
Coronifera oceanica
|
USA(Atlantic Coast) |
Late Turonian |
|