Costatoperforosporites |
Costatoperforosporites angicanalis
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Costatoperforosporites |
Costatoperforosporites fistulosus
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Costatoperforosporites |
Costatoperforosporites fistulosus
|
North America |
Barremian |
Middle Albian |
Costatoperforosporites |
Costatoperforosporites foveolatus
|
North America |
Berriasian |
Middle Albian |
Costatoperforosporites |
Costatoperforosporites perforatus
|
Worldwide |
Tithonian |
Valanginian |
Costatoperforosporites |
Costatoperforosporites perforatus
|
North America |
Valanginian |
Albian |
Costatoperforosporites |
Costatoperforosporites perforatus
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Couperisporites |
Couperisporites complexus
|
Nd |
Nd |
|
Couperisporites |
Couperisporites complexus
|
North America |
Berriasian |
Middle Albian |
Couperisporites |
Couperisporites tabulatus
|
Canada(Alberta) |
Late Barremian |
Early Albian |
Couperisporites |
Couperisporites tabulatus
|
North America |
Late Hauterivian |
Albian |
Couperisporites |
Couperisporites tabulatus
|
Worldwide |
Valanginian |
Albian |
Crybelosporites |
Crybelosporites brenneri
|
Canada(Alberta) |
Late Hauterivian |
Early Barremian |
Crybelosporites |
Crybelosporites brenneri
|
North America |
Late Hauterivian |
Albian |
Crybelosporites |
Crybelosporites mesozoicus
|
Canada(Alberta) |
Late Barremian |
Early Aptian |
Crybelosporites |
Crybelosporites vectensis
|
Canada(Alberta) |
Late Aptian |
Early Albian |
Crybelosporites |
Crybelosporites vectensis
|
North America |
Late Berriasian |
Albian |