Gonyaulacysta |
Gonyaulacysta cretacea
|
Spitsbergen |
Early Berriasian |
Early Barremian |
Gonyaulacysta |
Gonyaulacysta fastigiata
|
Spitsbergen |
Hauterivian |
Early Barremian |
Gonyaulacysta |
Gonyaulacysta helicoidea
|
Spitsbergen |
Early Barremian |
|
Gonyaulacysta |
Gonyaulacysta hyalodermopsis
|
Spitsbergen |
Early Barremian |
|
Gonyaulacysta |
Gonyaulacysta jurassica
|
Spitsbergen |
Early Barremian |
|
Heslertonia |
Heslertonia heslertonensis
|
Spitsbergen |
Early Barremian |
|
Hystrichodinium |
Hystrichodinium furcatum
|
Spitsbergen |
Valanginian |
Early Barremian |
Hystrichodinium |
Hystrichodinium pulchrum
|
Spitsbergen |
Early Barremian |
|
Hystrichosphaeridium |
Hystrichosphaeridium sp
|
Spitsbergen |
Early Barremian |
|
Kleithriasphaeridium |
Kleithriasphaeridium corrugatum
|
Spitsbergen |
Early Barremian |
|
Kleithriasphaeridium |
Kleithriasphaeridium fasciatum
|
Spitsbergen |
Early Berriasian |
Early Barremian |
Kleithriasphaeridium |
Kleithriasphaeridium simplicispinum
|
Spitsbergen |
Early Barremian |
|
Leiofusa |
Leiofusa sp
|
Spitsbergen |
Early Berriasian |
Early Barremian |
Leptodinium |
Leptodinium sp
|
Spitsbergen |
Early Berriasian |
|
Micrhystridium |
Micrhystridium fragile
|
Spitsbergen |
Hauterivian |
Early Barremian |
Micrhystridium |
Micrhystridium sp
|
Spitsbergen |
Early Berriasian |
Early Barremian |
Micrhystridium |
Micrhystridium sydus
|
Spitsbergen |
Early Berriasian |
Early Barremian |