Greater North Sea
Geological Time: Quaternary Holocene recent
the raw material is provided by Adrian Brokenshire and the image is made by
The identification is based upon:
, : Orbigny, A. D. d'. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314. Plate , Fig.