Acanthaulax |
Acanthaulax acanthosphaera
|
England |
Pliensbachian |
Kimmeridgian |
Acanthaulax |
Acanthaulax downiei
|
England |
Kimmeridgian |
|
Baltisphaeridium |
Baltisphaeridium downiei
|
England |
Pliensbachian |
Kimmeridgian |
Cleistosphaeridium |
Cleistosphaeridium lumectum
|
England |
Oxfordian |
|
Cymatiosphaera |
Cymatiosphaera parva
|
England |
Bathonian |
Oxfordian |
Cymatiosphaera |
Cymatiosphaera teichophera
|
England |
Pliensbachian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta helicoidea
|
England |
Pliensbachian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta hyaloderma
|
England |
Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta hyaloderma
|
England |
Pliensbachian |
Kimmeridgian |
Gonyaulacysta |
Gonyaulacysta longicornis
|
England |
Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta scarburghensis
|
England |
Callovian |
Oxfordian |
Gonyaulacysta |
Gonyaulacysta setcheyensis
sp. nov. |
England |
Kimmeridgian |
|
Gonyaulax |
Gonyaulax acanthosphaera
|
England |
Pliensbachian |
Kimmeridgian |
Heslertonia |
Heslertonia teichophera
|
England |
Callovian |
|
Hystrichosphaeridium |
Hystrichosphaeridium pattei
|
England |
Pliensbachian |
Kimmeridgian |
Kalyptea |
Kalyptea
|
England |
Pliensbachian |
Kimmeridgian |
Kalyptea |
Kalyptea trinetra
|
England |
Pliensbachian |
Kimmeridgian |