Pareodinia |
Pareodinia ceratophora
|
England |
Bathonian |
Oxfordian |
Cymatiosphaera |
Cymatiosphaera parva
|
England |
Bathonian |
Oxfordian |
Heslertonia |
Heslertonia teichophera
|
England |
Callovian |
|
Wanaea |
Wanaea fimbriata
|
England |
Oxfordian |
|
Meiourogonyaulax |
Meiourogonyaulax acanthosphaera
|
England |
Oxfordian |
|
Cleistosphaeridium |
Cleistosphaeridium lumectum
|
England |
Oxfordian |
|
Polystephanephorus |
Polystephanephorus calathus
|
England |
Oxfordian |
|
Netrelytron |
Netrelytron stegastum
|
England |
Oxfordian |
Kimmeridgian |
Systematophora |
Systematophora orbifera
|
England |
Oxfordian |
Kimmeridgian |
Prolixosphaeridium |
Prolixosphaeridium granulosum
|
England |
Oxfordian |
Portlandian |
Pterospermopsis |
Pterospermopsis helios
|
England |
Pliensbachian |
Kimmeridgian |
Palaeoperidinium |
Palaeoperidinium hyalodermum
|
England |
Pliensbachian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta helicoidea
|
England |
Pliensbachian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta hyaloderma
|
England |
Pliensbachian |
Kimmeridgian |
Hystrichosphaeridium |
Hystrichosphaeridium pattei
|
England |
Pliensbachian |
Kimmeridgian |
Baltisphaeridium |
Baltisphaeridium downiei
|
England |
Pliensbachian |
Kimmeridgian |
Cymatiosphaera |
Cymatiosphaera teichophera
|
England |
Pliensbachian |
Kimmeridgian |