Meiourogonyaulax |
Meiourogonyaulax deflandrei
|
USA(Atlantic Coast) |
Callovian |
|
Meiourogonyaulax |
Meiourogonyaulax staffinensis
|
USA(Atlantic Coast) |
Kimmeridgian |
|
Meiourogonyaulax |
Meiourogonyaulax stoveri
|
USA(Atlantic Coast) |
Early Aptian |
|
Muderongia |
Muderongia simplex
|
USA(Atlantic Coast) |
Berriasian |
|
Odontochitina |
Odontochitina operculata
|
USA(Atlantic Coast) |
Cenomanian |
|
Oligosphaeridium |
Oligosphaeridium complex
|
USA(Atlantic Coast) |
Berriasian |
Aptian |
Palaeohystrichophora |
Palaeohystrichophora infusorioides
|
USA(Atlantic Coast) |
Santonian |
Campanian |
Palaeoperidinium |
Palaeoperidinium pyrophorum
|
USA(Atlantic Coast) |
Paleocene |
|
Pareodinia |
Pareodinia ceratophora
|
USA(Atlantic Coast) |
Oxfordian |
Tithonian |
Pareodinia |
Pareodinia ceratophora
|
USA(Atlantic Coast) |
Early Jurassic |
Middle Jurassic |
Parvisaccites |
Parvisaccites radiatus
|
USA(Atlantic Coast) |
Albian |
|
Phyllocladidites |
Phyllocladidites inchoatus
|
USA(Atlantic Coast) |
Turonian |
|
Phyllocladidites |
Phyllocladidites microreticulatus
|
USA(Atlantic Coast) |
Albian |
|
Pilosisporites |
Pilosisporites trichopapillosus
|
USA(Atlantic Coast) |
Tithonian |
Aptian |
Retitricolpites |
Retitricolpites georgensis
|
USA(Atlantic Coast) |
Cenomanian |
|
Rugubivesiculites |
Rugubivesiculites rugosus
|
USA(Atlantic Coast) |
Paleocene |
|
Rugubivesiculites |
Rugubivesiculites rugosus
|
USA(Atlantic Coast) |
Albian |
Campanian |