Aequitriradites |
Aequitriradites spinulosus
|
Alaska |
Hauterivian |
Barremian |
Alnipollenites |
Alnipollenites sp
|
Alaska |
Santonian |
Paleocene |
Alnus |
Alnus sp
|
Alaska |
Neocomian |
Neogene |
Alnus |
Alnus sp
|
Alaska |
Campanian |
Maestrichtian |
Aquilapollenites |
Aquilapollenites magnus
|
Alaska |
Paleocene |
Eocene |
Aquilapollenites |
Aquilapollenites magnus
|
Alaska |
Campanian |
Maestrichtian |
Aquilapollenites |
Aquilapollenites sp
|
Alaska |
Hauterivian |
Barremian |
Aquilapollenites |
Aquilapollenites sp
|
Alaska |
Tertiary |
|
Aquilapollenites |
Aquilapollenites sp
|
Alaska |
Santonian |
Paleocene |
Aquilapollenites |
Aquilapollenites sp
|
Alaska |
Miocene |
|
Aquilapollenites |
Aquilapollenites trialatus
|
Alaska |
Hauterivian |
Eocene |
Aratrisporites |
Aratrisporites paenulatus
|
Alaska |
Neogene |
|
Baltisphaeridium |
Baltisphaeridium sp
|
Alaska |
Hauterivian |
Barremian |
Batioladinium |
Batioladinium jaegeri
|
Alaska |
Neocomian |
|
Batioladinium |
Batioladinium pelliferum
|
Alaska |
Early Cretaceous |
|
Betulaceae |
Betulaceae sp
|
Alaska |
Campanian |
Maestrichtian |
Betulaceae |
Betulaceae sp
|
Alaska |
Paleocene |
|