United Kingdom and Ireland UK
Project: Kimmeridge Clay Formation
Geological Time: Jurassic Upper Jurassic Tithonian
Kimmeridge Clay Formation
the raw material was collected and the specimen was extracted and photographed by
Michael Hesemann
Forma 1
The identification is based upon:
, : Römer, F. A. (1841). Die Versteinerungen des Norddeutschen Kreidegebirges. Mit sechszehn lithographirten Tafeln. Hahn'schen, Hofbuch-handlung, Hannover. [1840] iv + 49-145, pls. 8-20. Plate , Fig.