Mediterranean France
Geological Time: Neogene Pliocene Zanclean
the specimen is part of an assemblage, described in this
Steinkern Report ,
it is picked and photographed 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.