Cleistosphaeridium |
Cleistosphaeridium sp
|
Alaska |
Oxfordian |
Maastrichtian |
Cleistosphaeridium |
Cleistosphaeridium tribuliferum
|
Alaska |
Jurassic |
|
Concavissimisporites |
Concavissimisporites punctatus
|
Alaska |
Neocomian |
Albian |
Concavissimisporites |
Concavissimisporites sp
|
Alaska |
Neocomian |
Albian |
Convolutispora |
Convolutispora varicosa
|
Alaska |
Carboniferous |
|
Coronatispora |
Coronatispora valdensis
|
Alaska |
Neocomian |
|
Coronifera |
Coronifera oceanica
|
Alaska |
Cenomanian |
|
Costatoperforosporites |
Costatoperforosporites foveolatus
|
Alaska |
Santonian |
Campanian |
Cranwellia |
Cranwellia striata
|
Alaska |
Maastrichtian |
|
Cribroperidinium |
Cribroperidinium edwardsii
|
Alaska |
Aptian |
Coniacian |
Cribroperidinium |
Cribroperidinium edwardsii
|
Alaska |
Kimmeridgian |
Cenomanian |
Cribroperidinium |
Cribroperidinium mesozoicus
|
Alaska |
Pliensbachian |
Early Albian |
Cribroperidinium |
Cribroperidinium muderongense
|
Alaska |
Neocomian |
|
Crustaesporites |
Crustaesporites sp
|
Alaska |
Triassic |
|
Ctenidodinium |
Ctenidodinium ornatum
|
Alaska |
Oxfordian |
|
Ctenidodinium |
Ctenidodinium panneum
|
Alaska |
Kimmeridgian |
Tithonian |
Cyathidites |
Cyathidites australis
|
Alaska |
Neocomian |
Campanian |