Cordosphaeridium |
Cordosphaeridium biarmatum
|
Alaska |
Early Eocene |
|
Dracodinium |
Dracodinium condylos
|
Alaska |
Early Eocene |
|
Lanternosphaeridium |
Lanternosphaeridium radiatum
|
Alaska |
Early Eocene |
Middle Eocene |
Cordosphaeridium |
Cordosphaeridium gracile
|
Alaska |
Middle Eocene |
Late Eocene |
Deflandrea |
Deflandrea sagittula
|
Alaska |
Middle Eocene |
Miocene |
Deflandrea |
Deflandrea wetzelii
|
Alaska |
Middle Eocene |
|
Glaphyrocysta |
Glaphyrocysta exuberans
|
Alaska |
Middle Eocene |
Miocene |
Impagidinium |
Impagidinium velorum
|
Alaska |
Late Eocene |
|
Phthanoperidinium |
Phthanoperidinium alectrolophum
|
Alaska |
Middle Eocene |
Late Eocene |
Reticulatosphaera |
Reticulatosphaera actinocoronata
|
Alaska |
Miocene |
Early Pleistocene |
Lingulodinium |
Lingulodinium brevispinosum
|
Alaska |
Early Miocene |
Middle Miocene |
Spiniferites |
Spiniferites crassipellis
|
Alaska |
Early Miocene |
Middle Miocene |
Systematophora |
Systematophora ancyrea
|
Alaska |
Late Eocene |
Middle Miocene |
Impagidinium |
Impagidinium cornutum
|
Alaska |
Middle Miocene |
Late Neogene |
Epilobium |
Epilobium compactipollenites
|
Alaska |
Late Pliocene |
|
Rouseisporites |
Rouseisporites sp
|
Alaska |
Late Neogene |
Middle Pleistocene |
Impagidinium |
Impagidinium japonicum
|
Alaska |
Middle Eocene |
Middle Pleistocene |