Cyclonephelium |
Cyclonephelium vannophorum
|
Kansas |
Late Albian |
|
Doidyx |
Doidyx anaphrissa
|
England(Yorkshire) |
Early Barremian |
|
Endoceratium |
Endoceratium pentagonum
|
Canada(Alberta) |
Middle Cenomanian |
|
Glaphyrocysta |
Glaphyrocysta exuberans
|
Maryland |
Eocene |
|
Meiourogonyaulax |
Meiourogonyaulax ghermanii
|
Germany |
Middle Jurassic |
|
Muderongia |
Muderongia digitata
|
England(Isle of Wight) |
Late Aptian |
|
Muderongia |
Muderongia mcwhaei
|
California |
Neocomian |
|
Muderongia |
Muderongia pannosa
|
England(Yorkshire) |
Middle Barremian |
|
Muderongia |
Muderongia pentaradiata
|
Canada(Alberta) |
Early Cenomanian |
|
Muderongia |
Muderongia sp.A May & Stei.,1979
sp. nov. |
New Mexico |
Late Albian |
|
Muderongia |
Muderongia sp.A May & Stei.,1979
sp. nov. |
South Dakota |
Late Albian |
|
Muderongia |
Muderongia sp.A Nich.& Jaco.,1982
sp. nov. |
Wyoming |
Late Albian |
|
Nyktericysta |
Nyktericysta
|
Kansas |
Middle Albian |
Late Albian |
Nyktericysta |
Nyktericysta arachnion
sp. nov. |
Kansas |
Late Albian |
|
Nyktericysta |
Nyktericysta davisii
sp. nov. |
Kansas |
Middle Albian |
Late Albian |
Nyktericysta |
Nyktericysta pannosa
|
England(Yorkshire) |
Middle Barremian |
|
Nyktericysta |
Nyktericysta pentagonum
|
Canada(Alberta) |
Middle Cenomanian |
|