Nannoceratopsis |
Nannoceratopsis gracilis
|
Alaska(North Slope) |
Valanginian |
Albian |
Nannoceratopsis |
Nannoceratopsis pellucida
|
Alaska(North Slope) |
Oxfordian |
Valanginian |
Nelchinopsis |
Nelchinopsis kostromiensis
|
Alaska(North Slope) |
Valanginian |
|
Odontochitina |
Odontochitina operculata
|
Alaska(North Slope) |
Cretaceous |
|
Odontochitina |
Odontochitina operculata
|
Alaska(North Slope) |
Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium complex
|
Alaska(North Slope) |
Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium sp
|
Alaska(North Slope) |
Valanginian |
|
Osmundacidites |
Osmundacidites sp
|
Alaska(North Slope) |
Aptian |
Albian |
Osmundacidites |
Osmundacidites sp
|
Alaska(North Slope) |
Aptian |
Albian |
Osmundacidites |
Osmundacidites sp
|
Alaska(North Slope) |
Aptian |
Albian |
Osmundacidites |
Osmundacidites sp
|
Alaska(North Slope) |
Aptian |
Albian |
Ovoidinium |
Ovoidinium waltonii
|
Alaska(North Slope) |
Oxfordian |
|
Palaeoperidinium |
Palaeoperidinium cretaceum
|
Alaska(North Slope) |
Hauterivian |
Albian |
Palaeoperidinium |
Palaeoperidinium cretaceum
|
Alaska(North Slope) |
Aptian |
Albian |
Pareodinia |
Pareodinia alaskensis
|
Alaska(North Slope) |
Oxfordian |
Hauterivian |
Pareodinia |
Pareodinia ceratophora
|
Alaska(North Slope) |
Kimmeridgian |
Hauterivian |
Pareodinia |
Pareodinia osmingtonensis
|
Alaska(North Slope) |
Oxfordian |
Tithonian |