Acanthaulax |
Acanthaulax sp
|
North Sea |
Jurassic |
|
Acanthaulax |
Acanthaulax venusta
|
North Sea |
Early Kimmeridgian |
|
Acanthotriletes |
Acanthotriletes varius
|
North Sea |
Jurassic |
|
Adnatosphaeridium |
Adnatosphaeridium caulleryi
|
North Sea |
Jurassic |
|
Aequitriradites |
Aequitriradites sp
|
North Sea |
Jurassic |
|
Aequitriradites |
Aequitriradites sp
|
North Sea |
Late Portlandian |
|
Aequitriradites |
Aequitriradites spinulosus
|
North Sea |
Late Portlandian |
|
Aldorfia |
Aldorfia dictyota
|
North Sea |
Late Kimmeridgian |
|
Aldorfia |
Aldorfia dictyota
|
North Sea |
Late Kimmeridgian |
|
Aldorfia |
Aldorfia sp
|
North Sea |
Late Kimmeridgian |
|
Alisporites |
Alisporites sp
|
North Sea |
Jurassic |
|
Alisporites |
Alisporites thomasii
|
North Sea |
Jurassic |
|
Amphorula |
Amphorula expirata
|
North Sea |
Jurassic |
|
Amphorula |
Amphorula metaelliptica
|
North Sea |
Jurassic |
|
Amphorula |
Amphorula sp
|
North Sea |
Jurassic |
|
Angustisulcites |
Angustisulcites klausii
|
North Sea |
Jurassic |
|
Apiculatisporis |
Apiculatisporis ovalis
|
North Sea |
Jurassic |
|