found in the Baylei/Cymodoce Ammonite Zones at
Black Head
near Osmington Mills
United Kingdom and Ireland UK
Geological Time: Jurassic Upper Jurassic Kimmeridgian
Kimmeridge Clay Formation
The raw material was collected together with Dr. Steve Etches and Chris Webb. Specimens were picked and photographed by
The identification is based upon:
, : Bornemann, J. G. (1854). Ueber die Liasformation in der Umgegend von Göttingen und ihre organischen Einschlüsse : (mit einer geognostischen Skizze und drei Steindrucktafeln). 1-77. Plate , Fig.