Prolixosphaeridium |
Prolixosphaeridium basifurcatum
|
Nd |
Kimmeridgian |
|
Prolixosphaeridium |
Prolixosphaeridium granulosum
|
Nd |
Oxfordian |
Portlandian |
Prolixosphaeridium |
Prolixosphaeridium granulosum
|
Pakistan |
Late Portlandian |
|
Prolixosphaeridium |
Prolixosphaeridium mixtispinosum
|
Nd |
Callovian |
Kimmeridgian |
Prolixosphaeridium |
Prolixosphaeridium parvispinum
|
Nd |
Oxfordian |
Portlandian |
Psaligonyaulax |
Psaligonyaulax apatela
|
Nd |
Oxfordian |
Portlandian |
Psaligonyaulax |
Psaligonyaulax apatela
|
Pakistan |
Late Portlandian |
|
Pyxidiella |
Pyxidiella pandora
|
Nd |
Oxfordian |
Kimmeridgian |
Pyxidiella |
Pyxidiella scrobiculata
|
Nd |
Bajocian |
Bathonian |
Rhaetogonyaulax |
Rhaetogonyaulax chaloneri
|
Nd |
Rhaetian |
|
Rhaetogonyaulax |
Rhaetogonyaulax rhaetica
|
Nd |
Rhaetian |
|
Rugidinium |
Rugidinium ornatum
|
Nd |
Bajocian |
Bathonian |
Rugidinium |
Rugidinium undulatum
|
Nd |
Bajocian |
|
Scriniocassis |
Scriniocassis weberi
|
Nd |
Toarcian |
Aalenian |
Scriniodinium |
Scriniodinium bicuneatum
|
Nd |
Kimmeridgian |
|
Scriniodinium |
Scriniodinium ceratophorum
|
Nd |
Oxfordian |
|
Scriniodinium |
Scriniodinium crystallinum
|
England |
Early Oxfordian |
|