Gonyaulacysta |
Gonyaulacysta diaphana
|
Canada(W.Canada) |
Berriasian |
Aptian |
Gonyaulacysta |
Gonyaulacysta jurassica
|
Canada(W.Canada) |
Tithonian |
|
Heslertonia |
Heslertonia heslertonensis
|
Canada(W.Canada) |
Hauterivian |
Barremian |
Hexagonifera |
Hexagonifera chlamydata
|
Canada(W.Canada) |
Hauterivian |
Albian |
Hystrichosphaeridium |
Hystrichosphaeridium arborispinum
|
Canada(W.Canada) |
Barremian |
Aptian |
Lanterna |
Lanterna sportula
|
Canada(W.Canada) |
Tithonian |
|
Leptodinium |
Leptodinium alectrolophum
|
Canada(W.Canada) |
Barremian |
Aptian |
Lunatadinium |
Lunatadinium dissolutum
|
Canada(W.Canada) |
Barremian |
Albian |
Meiourogonyaulax |
Meiourogonyaulax stoveri
|
Canada(W.Canada) |
Hauterivian |
Aptian |
Muderongia |
Muderongia sp
|
Canada(W.Canada) |
Hauterivian |
Aptian |
Muderongia |
Muderongia tetracantha
|
Canada(W.Canada) |
Hauterivian |
Barremian |
Oligosphaeridium |
Oligosphaeridium albertense
|
Canada(W.Canada) |
Barremian |
Albian |
Oligosphaeridium |
Oligosphaeridium macrotubulum
|
Canada(W.Canada) |
Berriasian |
Hauterivian |
Ovoidinium |
Ovoidinium verrucosum
|
Canada(W.Canada) |
Albian |
|
Pareodinia |
Pareodinia ceratophora
|
Canada(W.Canada) |
Tithonian |
Hauterivian |
Pareodinia |
Pareodinia dasyforma
|
Canada(W.Canada) |
Valanginian |
Hauterivian |
Pareodinia |
Pareodinia osmingtonensis
|
Canada(W.Canada) |
Tithonian |
|