Micrhystridium |
Micrhystridium sp
|
Alaska(North Slope) |
Early Neocomian |
|
Micrhystridium |
Micrhystridium sp
|
Alaska(North Slope) |
Early Jurassic |
Middle Jurassic |
Muderongia |
Muderongia asymmetrica
|
Alaska(North Slope) |
Aptian |
Early Albian |
Nannoceratopsis |
Nannoceratopsis gracilis
|
Alaska(North Slope) |
Early Jurassic |
Middle Jurassic |
Odontochitina |
Odontochitina operculata
|
Alaska(North Slope) |
Aptian |
Albian |
Odontochitina |
Odontochitina operculata
|
Alaska(North Slope) |
Campanian |
|
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Aptian |
Early Albian |
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Aptian |
Albian |
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Aptian |
Albian |
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Aptian |
Albian |
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Early Jurassic |
Middle Jurassic |
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Aptian |
Albian |
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
Alaska(North Slope) |
Aptian |
Early Albian |
Osmundacidites |
Osmundacidites sp
|
Alaska(North Slope) |
Senonian |
|
Palaeoperidinium |
Palaeoperidinium cretaceum
|
Alaska(North Slope) |
Aptian |
Early Albian |
Pareodinia |
Pareodinia ceratophora
|
Alaska(North Slope) |
Late Jurassic |
|