Gochteodinia |
Gochteodinia villosa
|
Northern Hemisphere |
Portlandian |
Valanginian |
Gonyaulacysta |
Gonyaulacysta cassidata
|
Northern Hemisphere |
Late Oxfordian |
Cenomanian |
Gonyaulacysta |
Gonyaulacysta eisenackii
|
Northern Hemisphere |
Late Bajocian |
Early Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta jurassica
|
Northern Hemisphere |
Bathonian |
Early Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta scarburghensis
|
England(Yorkshire) |
Late Jurassic |
|
Hebecysta |
Hebecysta brevicornuta
|
Northern Hemisphere |
Norian |
|
Heteraulacacysta |
Heteraulacacysta porosa
|
Northern Hemisphere |
Bartonian |
|
Heterosphaeridium |
Heterosphaeridium difficile
|
Northern Hemisphere |
Turonian |
Santonian |
Homotryblium |
Homotryblium plectilum
|
Northern Hemisphere |
Bartonian |
Burdigalian |
Homotryblium |
Homotryblium tenuispinosum
|
Northern Hemisphere |
Ypresian |
Priabonian |
Homotryblium |
Homotryblium vallum
|
Northern Hemisphere |
Chattian |
Burdigalian |
Hystrichodinium |
Hystrichodinium sp
|
Northern Hemisphere |
Late Kimmeridgian |
Early Maastrichtian |
Hystrichokolpoma |
Hystrichokolpoma bulbosum
|
Northern Hemisphere |
Danian |
|
Hystrichokolpoma |
Hystrichokolpoma cinctum
|
Northern Hemisphere |
Ypresian |
Aquitanian |
Hystrichokolpoma |
Hystrichokolpoma rigaudiae
|
Northern Hemisphere |
Ypresian |
Pleistocene |
Hystrichosphaeridium |
Hystrichosphaeridium caiobense
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium salpingophorum
|
Northern Hemisphere |
Late Campanian |
Ypresian |