Odontochitina |
Odontochitina operculata
|
Canada(Arctic) |
Late Barremian |
Albian |
Odontochitina |
Odontochitina singhii
|
Canada(Arctic) |
Middle Albian |
|
Oligosphaeridium |
Oligosphaeridium asterigerum
|
Canada(Arctic) |
Aptian |
Albian |
Oligosphaeridium |
Oligosphaeridium asterigerum
|
Canada(Arctic) |
Early Aptian |
|
Oligosphaeridium |
Oligosphaeridium complex
|
Canada(Arctic) |
Late Barremian |
Albian |
Oligosphaeridium |
Oligosphaeridium poculum
|
Canada(Arctic) |
Aptian |
Late Albian |
Oligosphaeridium |
Oligosphaeridium prolixispinosum
|
Canada(Arctic) |
Late Albian |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
Canada(Arctic) |
Late Barremian |
Albian |
Oligosphaeridium |
Oligosphaeridium totum
|
Canada(Arctic) |
Aptian |
Late Albian |
Palaeoperidinium |
Palaeoperidinium cretaceum
|
Canada(Arctic) |
Late Barremian |
Albian |
Pareodinia |
Pareodinia sp
|
Canada(Arctic) |
Late Barremian |
Albian |
Protoellipsodinium |
Protoellipsodinium spinocristatum
|
Canada(Arctic) |
Late Albian |
|
Pseudoceratium |
Pseudoceratium eisenackii
|
Canada(Arctic) |
Late Aptian |
Albian |
Pseudoceratium |
Pseudoceratium expolitum
|
Canada(Arctic) |
Middle Albian |
Late Albian |
Pseudoceratium |
Pseudoceratium interiorense
|
Canada(Arctic) |
Early Albian |
Middle Albian |
Pseudoceratium |
Pseudoceratium nudum
|
Canada(Arctic) |
Late Barremian |
|
Pseudoceratium |
Pseudoceratium pelliferum
|
Canada(Arctic) |
Late Barremian |
Early Aptian |