Spheripollenites |
Spheripollenites psilatus
|
Canada(Alberta) |
Late Barremian |
Early Albian |
Spheripollenites |
Spheripollenites psilatus
|
North America |
Berriasian |
Albian |
Spheripollenites |
Spheripollenites scabratus
|
North America |
Berriasian |
Albian |
Spheripollenites |
Spheripollenites subgranulatus
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Spheripollenites |
Spheripollenites subgranulatus
|
North America |
Berriasian |
Albian |
Sporites |
Sporites cicatricosus
|
Montana |
Late Barremian |
Early Aptian |
Sporites |
Sporites cicatricosus
|
Montana |
Jurassic |
Albian |
Steevesipollenites |
Steevesipollenites dayani
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Steevesipollenites |
Steevesipollenites dayani
|
North America |
Barremian |
Early Aptian |
Stellatopollis |
Stellatopollis barghoornii
|
Worldwide |
Barremian |
Cenomanian |
Stellatopollis |
Stellatopollis barghoornii
|
North America |
Aptian |
Albian |
Stellatopollis |
Stellatopollis barghoornii
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Stellatopollis |
Stellatopollis sp.A
sp. nov. |
North America |
Late Barremian |
Aptian |
Stellatopollis |
Stellatopollis sp.A
sp. nov. |
Worldwide |
Late Barremian |
Aptian |
Stellatopollis |
Stellatopollis sp.A
sp. nov. |
Canada(Alberta) |
Late Barremian |
Early Aptian |
Stereisporites |
Stereisporites antiquasporites
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Stereisporites |
Stereisporites antiquasporites
|
North America |
Berriasian |
Albian |